{"product_id":"tungaloy-wnmg080416-th-t9125-carbide-insert","title":"Tungaloy WNMG080416-TH T9125 Carbide Turning Insert – PVD Coated for Steel Heavy Semi-Finishing \u0026 Roughing","description":"\u003c!-- ============================================================\n     TUNGALOY WNMG080416-TH T9125 – PRODUCT DETAIL PAGE\n     Brand Color: #47479F | Mobile-First | No iframes | No fixed widths\n     ============================================================ --\u003e\n\u003cstyle\u003e\n  .tng-wrap{font-family:'Segoe UI',Arial,sans-serif;color:#1a1a2e;line-height:1.7;max-width:100%}\n  .tng-hero{background:#47479F;color:#fff;padding:32px 24px;border-radius:10px;margin-bottom:28px}\n  .tng-hero h1{font-size:clamp(1.25rem,3vw,1.85rem);font-weight:800;margin:0 0 10px;letter-spacing:.4px}\n  .tng-hero p{font-size:1rem;margin:0;opacity:.92}\n  .tng-badge{display:inline-block;background:#fff;color:#47479F;font-weight:700;font-size:.78rem;padding:3px 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.tng-keyword-cloud{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}\n  .tng-kw{background:#e8e8f8;color:#47479F;font-size:.8rem;padding:4px 10px;border-radius:20px;font-weight:600}\n  @media(max-width:600px){\n    .tng-hero{padding:22px 16px}\n    .tng-code-cell{min-width:55px;padding:10px 8px}\n    .tng-code-cell .letter{font-size:1.2rem}\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"tng-wrap\"\u003e\n\n  \u003c!-- HERO \/ H1 --\u003e\n  \u003cdiv class=\"tng-hero\"\u003e\n    \u003cdiv\u003e\n      \u003cspan class=\"tng-badge\"\u003eISO WNMG\u003c\/span\u003e\n      \u003cspan class=\"tng-badge\"\u003eT9125 Grade\u003c\/span\u003e\n      \u003cspan class=\"tng-badge\"\u003ePVD TiAlN Coated\u003c\/span\u003e\n      \u003cspan class=\"tng-badge\"\u003eR1.6 Corner\u003c\/span\u003e\n      \u003cspan class=\"tng-badge\"\u003eTH Chipbreaker\u003c\/span\u003e\n      \u003cspan class=\"tng-badge\"\u003eTungaloy\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003ch1\u003eTungaloy WNMG080416-TH T9125 Carbide Turning Insert – PVD Coated for Heavy Steel Roughing \u0026amp; High-Feed Semi-Finishing\u003c\/h1\u003e\n    \u003cp\u003eThe most aggressive corner radius in the Tungaloy WNMG08 series. R1.6 corner with TH chipbreaker and T9125 tough grade — engineered for maximum material removal rate, heavy interrupted cuts, and the most demanding steel roughing applications on CNC lathes.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- PRODUCT OVERVIEW --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eProduct Overview\u003c\/h2\u003e\n    \u003cp\u003e\u003cem\u003e\"Which WNMG insert can handle the heaviest steel roughing with maximum feed rates and interrupted cuts?\"\u003c\/em\u003e\u003c\/p\u003e\n    \u003cp\u003eThe \u003cstrong\u003eTungaloy WNMG080416-TH T9125\u003c\/strong\u003e is the \u003cstrong\u003eultimate high-productivity variant\u003c\/strong\u003e in the Tungaloy WNMG08 family. With an \u003cstrong\u003eR1.6 corner radius\u003c\/strong\u003e — the largest available in the WNMG08 series — this insert delivers the maximum chip thinning effect, the strongest possible edge, and the highest feed rate capability of any WNMG08 insert. It is purpose-built for \u003cstrong\u003eheavy semi-finishing and roughing\u003c\/strong\u003e of carbon steel, alloy steel, and cast steel where material removal rate (MRR) is the primary objective.\u003c\/p\u003e\n    \u003cp\u003eThe \u003cstrong\u003eR1.6 corner\u003c\/strong\u003e creates an extreme chip thinning effect: at fn = 0.50 mm\/rev with ap = 3.0 mm, the actual chip thickness is approximately 0.22 mm — equivalent to running R0.4 at fn = 0.09 mm\/rev. This allows \u003cstrong\u003eprogrammed feed rates up to 0.70 mm\/rev\u003c\/strong\u003e while maintaining manageable chip loads and cutting forces, enabling cycle time reductions of 40–60% compared to R0.8 variants in roughing operations.\u003c\/p\u003e\n    \u003cp\u003eCombined with the \u003cstrong\u003eT9125 enhanced-toughness PVD grade\u003c\/strong\u003e and \u003cstrong\u003eTH heavy-feed chipbreaker\u003c\/strong\u003e, this insert is the go-to choice for production environments where every second of cycle time counts and tool life predictability is critical.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eSearch Keywords:\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cdiv class=\"tng-keyword-cloud\"\u003e\n      \u003cspan class=\"tng-kw\"\u003eWNMG080416-TH T9125\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eTungaloy carbide insert\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eWNMG 08 04 16\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eR1.6 turning insert\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003ePVD coated roughing insert\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eTH chipbreaker\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eT9125 grade\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eheavy steel roughing insert\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003ehigh feed turning insert\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003ealloy steel roughing\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eCNC lathe roughing insert\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eWNMG insert for roughing\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003eISO P25 carbide\u003c\/span\u003e\n      \u003cspan class=\"tng-kw\"\u003einterrupted cut roughing\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- MODEL CODE DECODER --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eModel Code Decoder – WNMG080416-TH T9125\u003c\/h2\u003e\n    \u003cp\u003eEvery character in the ISO insert designation carries precise engineering meaning:\u003c\/p\u003e\n    \u003cdiv class=\"tng-code-box\"\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003eW\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eInsert Shape\u003cbr\u003e80° Trigon (W)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003eN\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eClearance Angle\u003cbr\u003e0° (Negative)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003eM\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eTolerance Class\u003cbr\u003e±0.05–0.13mm\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003eG\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eFixing Method\u003cbr\u003eHole + Chip Groove (Double-sided)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003e08\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eCutting Edge Length\u003cbr\u003e8.0mm (IC 9.525mm)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003e04\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eInsert Thickness\u003cbr\u003e4.76mm\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003e16\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eCorner Radius\u003cbr\u003e1.6mm (R1.6)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003eTH\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eChipbreaker\u003cbr\u003eTungaloy Heavy-Feed\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003eT\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eBrand Prefix\u003cbr\u003eTungaloy Grade\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003e91\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eGrade Number\u003cbr\u003ePVD TiAlN Series\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003e25\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eISO Application\u003cbr\u003eP25 – Steel Semi-Finishing\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003ch3 style=\"margin-top:20px;\"\u003eR1.6 Corner Radius – The Chip Thinning Advantage\u003c\/h3\u003e\n    \u003cul style=\"font-size:.92rem;color:#333;padding-left:20px;\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eExtreme chip thinning effect:\u003c\/strong\u003e At fn = 0.50 mm\/rev with ap = 3.0 mm, actual chip thickness ≈ 0.22 mm. Allows programmed feeds up to 0.70 mm\/rev while maintaining manageable cutting forces — 40–60% cycle time reduction vs. R0.8.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMaximum edge strength:\u003c\/strong\u003e R1.6 distributes cutting forces over the largest possible arc in the WNMG08 series — critical for heavy interrupted cuts, forged surfaces with hard skin, and high depth-of-cut operations.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCritical depth-of-cut rule:\u003c\/strong\u003e Always ensure ap \u0026gt; rε. For R1.6, minimum recommended ap = 2.0 mm. Running ap \u0026lt; rε causes rubbing, vibration, and rapid wear. For ap \u0026lt; 1.5 mm, use R0.8 or R1.2.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eTH heavy-feed groove:\u003c\/strong\u003e Designed for the extreme chip volumes generated at fn 0.35–0.70 mm\/rev — wide groove with reinforced T-land edge handles heavy chip loads without jamming or edge fracture.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSurface finish expectation:\u003c\/strong\u003e Ra 3.2–6.3 µm at typical roughing feeds. This insert is for stock removal, not surface finish — follow with WNMG080404-TSF T9115 for finishing.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- KEY FEATURES --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eKey Features\u003c\/h2\u003e\n    \u003cdiv class=\"tng-features\"\u003e\n      \u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 R1.6 Corner – Maximum MRR\u003c\/strong\u003e\u003cspan\u003eLargest corner in the WNMG08 series. Enables fn up to 0.70 mm\/rev via extreme chip thinning effect — 40–60% cycle time reduction vs. R0.8 in roughing operations.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 T9125 Enhanced Toughness Grade\u003c\/strong\u003e\u003cspan\u003eTougher PVD TiAlN substrate than T9115 — maximum resistance to edge fracture under heavy chip loads, severe interrupted cuts, and forged surface conditions.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 TH Heavy-Feed Chipbreaker\u003c\/strong\u003e\u003cspan\u003eWide chip groove with reinforced T-land edge — handles fn 0.35–0.70 mm\/rev with reliable chip control and minimal chip jamming at extreme MRR.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 PVD TiAlN Multi-Layer Coating\u003c\/strong\u003e\u003cspan\u003eOxidation resistance up to 900°C. Maintains coating integrity under the extreme mechanical loads of heavy roughing and interrupted cutting.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 80° Trigon Insert Shape (W)\u003c\/strong\u003e\u003cspan\u003eStrong, versatile geometry for external turning and facing. The 80° included angle provides excellent edge strength for the most demanding roughing conditions.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 Double-Sided Insert (4 Edges)\u003c\/strong\u003e\u003cspan\u003eG-type double-sided insert with 4 usable cutting edges — maximizes cost efficiency and reduces tooling cost per part by up to 4x vs. single-sided inserts.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TECHNICAL SPECIFICATIONS --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n    \u003ch3\u003eMetric \u0026amp; Imperial Dimensions\u003c\/h3\u003e\n    \u003ctable class=\"tng-table\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eMetric\u003c\/th\u003e\n\u003cth\u003eImperial\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eInsert Shape\u003c\/td\u003e\n\u003ctd\u003e80° Trigon (W)\u003c\/td\u003e\n\u003ctd\u003e80° Trigon (W)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd\u003e9.525 mm\u003c\/td\u003e\n\u003ctd\u003e3\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCutting Edge Length (L)\u003c\/td\u003e\n\u003ctd\u003e8.0 mm\u003c\/td\u003e\n\u003ctd\u003e0.315 in\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eInsert Thickness (S)\u003c\/td\u003e\n\u003ctd\u003e4.76 mm\u003c\/td\u003e\n\u003ctd\u003e0.1875 in\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCorner Radius (rε)\u003c\/td\u003e\n\u003ctd\u003e1.6 mm\u003c\/td\u003e\n\u003ctd\u003e1\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eClearance Angle\u003c\/td\u003e\n\u003ctd\u003e0° (Negative)\u003c\/td\u003e\n\u003ctd\u003e0° (Negative)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTolerance Class\u003c\/td\u003e\n\u003ctd\u003eM (±0.05–0.13 mm)\u003c\/td\u003e\n\u003ctd\u003eM (±0.002–0.005 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eHole Diameter\u003c\/td\u003e\n\u003ctd\u003e3.81 mm\u003c\/td\u003e\n\u003ctd\u003e0.150 in\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eGrade\u003c\/td\u003e\n\u003ctd\u003eT9125\u003c\/td\u003e\n\u003ctd\u003eT9125\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003ePVD TiAlN Multi-Layer\u003c\/td\u003e\n\u003ctd\u003ePVD TiAlN Multi-Layer\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eISO Application\u003c\/td\u003e\n\u003ctd\u003eP20–P35, M20–M30\u003c\/td\u003e\n\u003ctd\u003eP20–P35, M20–M30\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eChipbreaker\u003c\/td\u003e\n\u003ctd\u003eTH (Heavy-Feed)\u003c\/td\u003e\n\u003ctd\u003eTH (Heavy-Feed)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eUsable Cutting Edges\u003c\/td\u003e\n\u003ctd\u003e4 edges (double-sided)\u003c\/td\u003e\n\u003ctd\u003e4 edges (double-sided)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003e10 pcs \/ box\u003c\/td\u003e\n\u003ctd\u003e10 pcs \/ box\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n    \u003ctable class=\"tng-table\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWorkpiece Material\u003c\/th\u003e\n\u003cth\u003eCutting Speed Vc (m\/min)\u003c\/th\u003e\n\u003cth\u003eCutting Speed Vc (SFM)\u003c\/th\u003e\n\u003cth\u003eFeed Rate fn (mm\/rev)\u003c\/th\u003e\n\u003cth\u003eFeed Rate fn (in\/rev)\u003c\/th\u003e\n\u003cth\u003eDepth of Cut ap (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCarbon Steel (P)\u003c\/td\u003e\n\u003ctd\u003e100–220\u003c\/td\u003e\n\u003ctd\u003e328–722\u003c\/td\u003e\n\u003ctd\u003e0.35–0.70\u003c\/td\u003e\n\u003ctd\u003e0.014–0.028\u003c\/td\u003e\n\u003ctd\u003e2.0–5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eAlloy Steel (P)\u003c\/td\u003e\n\u003ctd\u003e80–180\u003c\/td\u003e\n\u003ctd\u003e262–591\u003c\/td\u003e\n\u003ctd\u003e0.30–0.60\u003c\/td\u003e\n\u003ctd\u003e0.012–0.024\u003c\/td\u003e\n\u003ctd\u003e2.0–4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCast Steel (P\/K)\u003c\/td\u003e\n\u003ctd\u003e70–160\u003c\/td\u003e\n\u003ctd\u003e230–525\u003c\/td\u003e\n\u003ctd\u003e0.30–0.55\u003c\/td\u003e\n\u003ctd\u003e0.012–0.022\u003c\/td\u003e\n\u003ctd\u003e2.0–4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eStainless Steel (M)\u003c\/td\u003e\n\u003ctd\u003e60–120\u003c\/td\u003e\n\u003ctd\u003e197–394\u003c\/td\u003e\n\u003ctd\u003e0.20–0.40\u003c\/td\u003e\n\u003ctd\u003e0.008–0.016\u003c\/td\u003e\n\u003ctd\u003e1.5–3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp style=\"font-size:.82rem;color:#666;\"\u003e* R1.6 minimum recommended ap = 2.0 mm. Never run ap \u0026lt; rε (1.6 mm). Reduce speed by 15–25% for interrupted cuts or forged surfaces with hard skin.\u003c\/p\u003e\n\n    \u003ch3\u003eFull WNMG08 Corner Radius Comparison\u003c\/h3\u003e\n    \u003ctable class=\"tng-table\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eR0.4 (080404)\u003c\/th\u003e\n\u003cth\u003eR0.8 (080408)\u003c\/th\u003e\n\u003cth\u003eR1.2 (080412)\u003c\/th\u003e\n\u003cth\u003eR1.6 (080416) ✓\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCorner Radius\u003c\/td\u003e\n\u003ctd\u003e0.4 mm\u003c\/td\u003e\n\u003ctd\u003e0.8 mm\u003c\/td\u003e\n\u003ctd\u003e1.2 mm\u003c\/td\u003e\n\u003ctd\u003e1.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMax Feed Rate (fn)\u003c\/td\u003e\n\u003ctd\u003e0.20 mm\/rev\u003c\/td\u003e\n\u003ctd\u003e0.40 mm\/rev\u003c\/td\u003e\n\u003ctd\u003e0.60 mm\/rev\u003c\/td\u003e\n\u003ctd\u003e0.70 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eBest Surface Finish\u003c\/td\u003e\n\u003ctd\u003eRa ≤ 0.4 µm\u003c\/td\u003e\n\u003ctd\u003eRa ≤ 0.8 µm\u003c\/td\u003e\n\u003ctd\u003eRa ≤ 1.6 µm\u003c\/td\u003e\n\u003ctd\u003eRa ≤ 3.2 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eEdge Strength\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eMaximum\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eChip Thinning Effect\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eExtreme\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTool Life vs. R0.4\u003c\/td\u003e\n\u003ctd\u003eBaseline\u003c\/td\u003e\n\u003ctd\u003e+20–30%\u003c\/td\u003e\n\u003ctd\u003e+40–60%\u003c\/td\u003e\n\u003ctd\u003e+60–80%\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMin. Depth of Cut\u003c\/td\u003e\n\u003ctd\u003e0.2 mm\u003c\/td\u003e\n\u003ctd\u003e0.5 mm\u003c\/td\u003e\n\u003ctd\u003e1.5 mm\u003c\/td\u003e\n\u003ctd\u003e2.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eBest Application\u003c\/td\u003e\n\u003ctd\u003eFinishing\u003c\/td\u003e\n\u003ctd\u003eSemi-finishing\u003c\/td\u003e\n\u003ctd\u003eSemi-finishing\/Roughing\u003c\/td\u003e\n\u003ctd\u003eHeavy Roughing\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp style=\"font-size:.82rem;color:#666;\"\u003e✓ = Current product. R1.6 is the maximum corner radius in the WNMG08 series — use when MRR and tool life are the absolute priority.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- COMPATIBLE TOOL HOLDERS --\u003e\n  \u003cdiv class=\"tng-toolholder-box\"\u003e\n    \u003ch3\u003e🔧 Compatible Tool Holders (WNMG080416)\u003c\/h3\u003e\n    \u003cp style=\"font-size:.85rem;opacity:.85;margin-bottom:14px;\"\u003eWNMG080416 uses the same MWLNR\/L 08-pocket holders as all WNMG08 variants. For R1.6 heavy roughing, always use the largest shank size available for maximum rigidity:\u003c\/p\u003e\n    \u003cdiv class=\"tng-toolholder-grid\"\u003e\n      \u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eMWLNR\/L 2525M08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e25mm shank, high-rigidity roughing\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eMWLNR\/L 3232P08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e32mm shank, heavy-duty roughing\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eMWLNR\/L 4040R08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e40mm shank, large lathe heavy roughing\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eDWLNR\/L 2525M08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e25mm shank, 93° lead angle, facing \u0026amp; roughing\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eDWLNR\/L 3232P08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e32mm shank, heavy-duty facing \u0026amp; roughing\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eA32R-MWLNR08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003eBoring bar, 32mm bore, internal roughing\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cp style=\"font-size:.8rem;opacity:.75;margin-top:12px;\"\u003eFor R1.6 heavy roughing: always use 25mm+ shank, ensure machine spindle power \u0026gt; 15 kW, and verify turret rigidity before running at maximum feed rates.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- APPLICATIONS --\u003e\n  \u003cdiv class=\"tng-section\" style=\"margin-top:28px;\"\u003e\n    \u003ch2\u003eApplications\u003c\/h2\u003e\n    \u003cdiv class=\"tng-app-grid\"\u003e\n      \u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eHeavy Steel Roughing\u003c\/strong\u003eMaximum MRR roughing of carbon and alloy steel billets, forgings, and castings at fn 0.40–0.70 mm\/rev for the fastest possible stock removal.\u003c\/div\u003e\n      \u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eLarge Diameter Shaft Turning\u003c\/strong\u003eRoughing of large-diameter shafts, rolls, and cylinders (ø100mm+) where high feed rates are essential to maintain productive cycle times on large CNC lathes.\u003c\/div\u003e\n      \u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eForged Steel with Hard Skin\u003c\/strong\u003eRoughing of forged crankshafts, axles, and flanges with hard forging skin and scale — R1.6 edge strength absorbs the impact without fracture.\u003c\/div\u003e\n      \u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eCast Steel \u0026amp; Cast Iron Roughing\u003c\/strong\u003eHeavy roughing of cast steel housings, rolls, and structural components with variable hardness, inclusions, and interrupted surfaces.\u003c\/div\u003e\n      \u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eHeavy Truck \u0026amp; Rail Components\u003c\/strong\u003eRoughing of truck axles, railway wheel blanks, bogie components, and heavy-duty transmission shafts in medium-carbon alloy steel.\u003c\/div\u003e\n      \u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003ePre-Finishing Stock Removal\u003c\/strong\u003eAggressive stock removal pass before semi-finishing and finishing — use WNMG080416-TH for roughing, WNMG080408-TH for semi-finishing, WNMG080404-TSF for finishing.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TUNGALOY GRADE COMPARISON --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eTungaloy Grade Comparison – Steel Turning\u003c\/h2\u003e\n    \u003ctable class=\"tng-grade-table\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003cth\u003eCoating\u003c\/th\u003e\n\u003cth\u003eISO Range\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003eToughness\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eT9105\u003c\/td\u003e\n\u003ctd\u003ePVD TiAlN\u003c\/td\u003e\n\u003ctd\u003eP05–P15\u003c\/td\u003e\n\u003ctd\u003eHigh-speed finishing, hardened steel\u003c\/td\u003e\n\u003ctd\u003e★☆☆☆☆\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eT9115\u003c\/td\u003e\n\u003ctd\u003ePVD TiAlN\u003c\/td\u003e\n\u003ctd\u003eP10–P25\u003c\/td\u003e\n\u003ctd\u003eFinishing to semi-finishing, steel \u0026amp; SS\u003c\/td\u003e\n\u003ctd\u003e★★☆☆☆\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr class=\"highlight\"\u003e\n\u003ctd\u003eT9125 ✓\u003c\/td\u003e\n\u003ctd\u003ePVD TiAlN\u003c\/td\u003e\n\u003ctd\u003eP20–P35\u003c\/td\u003e\n\u003ctd\u003eSemi-finishing, roughing, interrupted cuts\u003c\/td\u003e\n\u003ctd\u003e★★★☆☆\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eAH725\u003c\/td\u003e\n\u003ctd\u003eCVD\u003c\/td\u003e\n\u003ctd\u003eP15–P30\u003c\/td\u003e\n\u003ctd\u003eSemi-finishing to roughing, steel\u003c\/td\u003e\n\u003ctd\u003e★★★★☆\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eAH8015\u003c\/td\u003e\n\u003ctd\u003eCVD\u003c\/td\u003e\n\u003ctd\u003eP25–P40\u003c\/td\u003e\n\u003ctd\u003eHeavy roughing, severe interrupted cuts\u003c\/td\u003e\n\u003ctd\u003e★★★★★\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eT9115 (M)\u003c\/td\u003e\n\u003ctd\u003ePVD TiAlN\u003c\/td\u003e\n\u003ctd\u003eM10–M25\u003c\/td\u003e\n\u003ctd\u003eStainless steel finishing\u003c\/td\u003e\n\u003ctd\u003e★★☆☆☆\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp style=\"font-size:.82rem;color:#666;\"\u003e✓ = Current product. For even heavier roughing conditions where T9125 chips, step up to AH725 or AH8015 (CVD grades with higher toughness).\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- WHY CHOOSE US --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eWhy Choose Us\u003c\/h2\u003e\n    \u003cdiv class=\"tng-why-grid\"\u003e\n      \u003cdiv class=\"tng-why-card\"\u003e\n\u003cdiv class=\"icon\"\u003e🏭\u003c\/div\u003e\n\u003cstrong\u003eAuthorized Distributor\u003c\/strong\u003e\u003cspan\u003e100% genuine Tungaloy products with full manufacturer quality assurance.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-why-card\"\u003e\n\u003cdiv class=\"icon\"\u003e🚀\u003c\/div\u003e\n\u003cstrong\u003eFast Global Shipping\u003c\/strong\u003e\u003cspan\u003eWorldwide dispatch with full tracking and reliable delivery timelines.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-why-card\"\u003e\n\u003cdiv class=\"icon\"\u003e🔬\u003c\/div\u003e\n\u003cstrong\u003eTechnical Expertise\u003c\/strong\u003e\u003cspan\u003eExpert application support to optimize grade, geometry, and cutting parameters for your roughing operations.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-why-card\"\u003e\n\u003cdiv class=\"icon\"\u003e📦\u003c\/div\u003e\n\u003cstrong\u003eBulk Pricing\u003c\/strong\u003e\u003cspan\u003eCompetitive volume discounts for production quantities. Contact us for a quote.\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"tng-why-card\"\u003e\n\u003cdiv class=\"icon\"\u003e✅\u003c\/div\u003e\n\u003cstrong\u003eGuaranteed Genuine\u003c\/strong\u003e\u003cspan\u003eEvery insert sourced directly from Tungaloy — zero counterfeits, zero compromises.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- CUSTOMER REVIEWS --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eCustomer Reviews\u003c\/h2\u003e\n    \u003cdiv class=\"tng-review-grid\"\u003e\n      \u003cdiv class=\"tng-review-card\"\u003e\n        \u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n        \u003cdiv class=\"reviewer\"\u003eTom B.\u003c\/div\u003e\n        \u003cdiv class=\"country\"\u003e🇺🇸 United States\u003c\/div\u003e\n        \u003cp\u003e\"Using WNMG080416-TH T9125 for roughing 4340 steel shafts at fn 0.55 mm\/rev. Cycle time dropped by 45% compared to our previous R0.8 inserts. Tool life is consistent and the R1.6 corner handles the interrupted cuts without any chipping. Best roughing insert we’ve used.\"\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"tng-review-card\"\u003e\n        \u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n        \u003cdiv class=\"reviewer\"\u003eWerner S.\u003c\/div\u003e\n        \u003cdiv class=\"country\"\u003e🇩🇪 Germany\u003c\/div\u003e\n        \u003cp\u003e\"Eingesetzt für die Schruppbearbeitung großer Wellen aus 42CrMo4 auf einem Schwerdrehzentrum. Mit fn 0.50 mm\/rev und R1.6 erreichen wir eine Zerspanungsleistung, die mit R1.2 nicht möglich war. Standzeit und Prozesssicherheit überzeugen auch bei Schmiedeteilen mit harter Haut.\"\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"tng-review-card\"\u003e\n        \u003cdiv class=\"stars\"\u003e★★★★☆\u003c\/div\u003e\n        \u003cdiv class=\"reviewer\"\u003eLuca M.\u003c\/div\u003e\n        \u003cdiv class=\"country\"\u003e🇮🇹 Italy\u003c\/div\u003e\n        \u003cp\u003e\"Utilizzo WNMG080416-TH per la sgrossatura di grandi alberi in acciaio bonificato. Il raggio R1.6 permette avanzamenti molto elevati con ottima vita utensile. Importante rispettare la profondità di passata minima di 2mm per evitare vibrazioni.\"\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"tng-review-card\"\u003e\n        \u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n        \u003cdiv class=\"reviewer\"\u003eHiroshi Y.\u003c\/div\u003e\n        \u003cdiv class=\"country\"\u003e🇯🇵 Japan\u003c\/div\u003e\n        \u003cp\u003e\"SCM440の大径軟の荒剥き加工に使用。R1.6のチップ薄屑効果でfn 0.55mm\/revで加工でき、サイクルタイムが50%以上短縮。工具寿命も安定しており、大批量生産に最適です。\"\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"tng-review-card\"\u003e\n        \u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n        \u003cdiv class=\"reviewer\"\u003eAndrew M.\u003c\/div\u003e\n        \u003cdiv class=\"country\"\u003e🇬🇧 United Kingdom\u003c\/div\u003e\n        \u003cp\u003e\"We rough cast steel rolls on a large lathe — hard spots, inclusions, and heavy interrupted cuts. WNMG080416-TH T9125 is the only insert that gives us consistent tool life in these conditions. The R1.6 corner absorbs the shock that was fracturing our R1.2 inserts.\"\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"tng-review-card\"\u003e\n        \u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n        \u003cdiv class=\"reviewer\"\u003eLiu J.\u003c\/div\u003e\n        \u003cdiv class=\"country\"\u003e🇨🇳 China\u003c\/div\u003e\n        \u003cp\u003e\"用于42CrMo大径轴粗加工，进给0.55mm\/rev，切削速度150m\/min。R1.6圆弧的薄屑效果非常显著，刷刀次数比R1.2多60%以上。生产效率大幅提升，强烈推荐。\"\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"tng-review-card\"\u003e\n        \u003cdiv class=\"stars\"\u003e★★★★☆\u003c\/div\u003e\n        \u003cdiv class=\"reviewer\"\u003eCarlos R.\u003c\/div\u003e\n        \u003cdiv class=\"country\"\u003e🇲🇽 Mexico\u003c\/div\u003e\n        \u003cp\u003e\"Excelente inserto para desbaste pesado de acero forjado. El radio R1.6 aguanta bien los impactos de la piel de forja y permite avances muy superiores a R1.2. Vida de herramienta muy consistente en producción de ejes pesados para camiones.\"\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv class=\"tng-section\"\u003e\n    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n    \u003cdiv class=\"tng-faq\"\u003e\n      \u003cdiv class=\"tng-faq-q\"\u003eQ1: When should I choose WNMG080416 (R1.6) over R1.2 or R0.8?\u003c\/div\u003e\n      \u003cdiv class=\"tng-faq-a\"\u003eChoose \u003cstrong\u003eR1.6 (080416)\u003c\/strong\u003e when your priority is \u003cstrong\u003emaximum MRR in roughing operations\u003c\/strong\u003e with ap ≥ 2.0 mm. R1.6 enables fn up to 0.70 mm\/rev via extreme chip thinning and provides the strongest edge for severe interrupted cuts and forged surfaces. \u003cstrong\u003eCritical rule:\u003c\/strong\u003e ap must always be \u0026gt; rε (1.6 mm) — minimum recommended ap = 2.0 mm. For ap \u0026lt; 1.5 mm, use R0.8 or R1.2. Choose R1.2 for semi-finishing with ap 1.5–3.0 mm; R1.6 for heavy roughing with ap 2.0–5.0 mm.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"tng-faq\"\u003e\n      \u003cdiv class=\"tng-faq-q\"\u003eQ2: What machine power is required for WNMG080416-TH at maximum feed rates?\u003c\/div\u003e\n      \u003cdiv class=\"tng-faq-a\"\u003eAt maximum parameters (fn 0.60 mm\/rev, ap 4.0 mm, Vc 180 m\/min on carbon steel), estimated cutting power is \u003cstrong\u003e15–25 kW\u003c\/strong\u003e depending on workpiece material and machine efficiency. We recommend a minimum spindle power of \u003cstrong\u003e15 kW\u003c\/strong\u003e for productive use of R1.6 at high feeds. For smaller machines (\u0026lt;10 kW), use R1.2 or R0.8 with reduced parameters. Always verify machine rigidity and turret clamping before running at maximum feed rates.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"tng-faq\"\u003e\n      \u003cdiv class=\"tng-faq-q\"\u003eQ3: Can I use the same tool holder for WNMG080416 as for other WNMG08 variants?\u003c\/div\u003e\n      \u003cdiv class=\"tng-faq-a\"\u003eYes — WNMG080416 uses the same \u003cstrong\u003eMWLNR\/L 08-pocket tool holder\u003c\/strong\u003e as R0.4, R0.8, and R1.2 variants. However, for R1.6 heavy roughing, we strongly recommend a \u003cstrong\u003e32mm or 40mm shank holder\u003c\/strong\u003e for maximum rigidity. Using a 16mm or 20mm shank at high feed rates with R1.6 may cause vibration and premature tool failure.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"tng-faq\"\u003e\n      \u003cdiv class=\"tng-faq-q\"\u003eQ4: Should I use coolant with WNMG080416-TH T9125?\u003c\/div\u003e\n      \u003cdiv class=\"tng-faq-a\"\u003eFor steel roughing, \u003cstrong\u003eflood coolant is recommended\u003c\/strong\u003e to manage the high heat generated at elevated feed rates and depths of cut. High-pressure coolant (HPC) is beneficial for chip evacuation at fn \u0026gt; 0.40 mm\/rev. The PVD TiAlN coating on T9125 also supports \u003cstrong\u003edry cutting\u003c\/strong\u003e at moderate speeds if coolant is unavailable, but tool life will be reduced. Avoid intermittent coolant application as thermal shock can cause coating delamination.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"tng-faq\"\u003e\n      \u003cdiv class=\"tng-faq-q\"\u003eQ5: What is the three-pass strategy for optimal productivity and surface finish?\u003c\/div\u003e\n      \u003cdiv class=\"tng-faq-a\"\u003eFor maximum efficiency in steel turning, use a \u003cstrong\u003ethree-pass strategy\u003c\/strong\u003e: (1) \u003cstrong\u003eRoughing:\u003c\/strong\u003e WNMG080416-TH T9125 at fn 0.40–0.60 mm\/rev, ap 2.0–5.0 mm — maximum MRR. (2) \u003cstrong\u003eSemi-finishing:\u003c\/strong\u003e WNMG080408-TH T9125 at fn 0.15–0.35 mm\/rev, ap 0.5–2.0 mm — leave 0.3–0.5 mm for finishing. (3) \u003cstrong\u003eFinishing:\u003c\/strong\u003e WNMG080404-TSF T9115 at fn 0.05–0.15 mm\/rev, ap 0.2–0.5 mm — achieve Ra ≤ 0.8 µm. This strategy optimizes cycle time, tool life, and surface quality simultaneously.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- GRADE TIP BOX --\u003e\n  \u003cdiv class=\"tng-tip-box\"\u003e\n    \u003ch3\u003e💡 Corner Radius \u0026amp; Grade Selection Tips – Tungaloy WNMG08 Complete Guide\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eR0.4 (080404):\u003c\/strong\u003e Finishing only. Ra ≤ 0.4 µm, fn ≤ 0.20 mm\/rev, ap ≥ 0.2 mm. Use with TSF chipbreaker and T9115 grade.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eR0.8 (080408):\u003c\/strong\u003e Semi-finishing. Ra ≤ 0.8 µm, fn ≤ 0.40 mm\/rev, ap ≥ 0.5 mm. Use with TSF (T9115) or TH (T9125).\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eR1.2 (080412):\u003c\/strong\u003e Semi-finishing\/light roughing. Ra ≤ 1.6 µm, fn ≤ 0.60 mm\/rev, ap ≥ 1.5 mm. Use with TH chipbreaker and T9125.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eR1.6 (080416) — This Product:\u003c\/strong\u003e Heavy roughing. Ra ≤ 3.2 µm, fn ≤ 0.70 mm\/rev, ap ≥ 2.0 mm. Use with TH chipbreaker and T9125. Maximum MRR.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCritical rule for all large radii:\u003c\/strong\u003e ap must always exceed rε. Running ap \u0026lt; rε causes rubbing, vibration, and rapid wear regardless of grade or chipbreaker.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eGrade escalation for interrupted cuts:\u003c\/strong\u003e T9115 → T9125 → AH725 → AH8015. Step up one grade for each increase in interruption severity.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eThree-pass strategy:\u003c\/strong\u003e R1.6\/TH\/T9125 (roughing) → R0.8\/TH\/T9125 (semi-finishing) → R0.4\/TSF\/T9115 (finishing) = optimal productivity + quality.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43178022994092,"sku":"WNMG080416-TH T9125","price":94.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/WNMG080416-THT9125.jpg?v=1711605036","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-wnmg080416-th-t9125-carbide-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}