{"product_id":"tungaloy-wnmg080408-tsf-t9115-carbide-insert","title":"Tungaloy WNMG080408-TSF T9115 Carbide Turning Insert – PVD Coated for Steel \u0026 Stainless","description":"\u003c!-- ============================================================\n     TUNGALOY WNMG080408-TSF T9115 – 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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p{font-size:.88rem;color:#333;margin:0}\n  .tng-faq{margin-bottom:12px;border:1px solid #dde;border-radius:8px;overflow:hidden}\n  .tng-faq-q{background:#47479F;color:#fff;padding:14px 18px;font-weight:700;font-size:.95rem}\n  .tng-faq-a{background:#f9f9ff;padding:14px 18px;font-size:.9rem;color:#333}\n  .tng-tip-box{background:#1a1a2e;color:#fff;border-radius:10px;padding:20px 24px;margin-top:28px}\n  .tng-tip-box h3{color:#a0a0ff;margin-bottom:12px}\n  .tng-tip-box ul{margin:0;padding-left:20px}\n  .tng-tip-box li{margin-bottom:6px;font-size:.9rem;opacity:.92}\n  .tng-why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}\n  .tng-why-card{background:#47479F;color:#fff;border-radius:8px;padding:16px;text-align:center}\n  .tng-why-card .icon{font-size:1.8rem;margin-bottom:8px}\n  .tng-why-card strong{display:block;font-size:.95rem;margin-bottom:4px}\n  .tng-why-card span{font-size:.82rem;opacity:.88}\n  .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\u003cdiv class=\"tng-wrap\"\u003e\n\u003c!-- HERO \/ H1 --\u003e\n\u003cdiv class=\"tng-hero\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"tng-badge\"\u003eISO WNMG\u003c\/span\u003e \u003cspan class=\"tng-badge\"\u003eT9115 Grade\u003c\/span\u003e \u003cspan class=\"tng-badge\"\u003ePVD TiAlN Coated\u003c\/span\u003e \u003cspan class=\"tng-badge\"\u003eR0.8 Corner\u003c\/span\u003e \u003cspan class=\"tng-badge\"\u003eTungaloy\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch1\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy WNMG080408-TSF T9115 Carbide Turning Insert – PVD Coated for Steel \u0026amp; Stainless Semi-Finishing\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eAn 80° trigon carbide insert engineered for finishing to semi-finishing of carbon steel, alloy steel, and stainless steel. The R0.8 corner radius and TSF chipbreaker geometry deliver superior chip control and excellent surface finish at higher feed rates than the R0.4 variant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- PRODUCT OVERVIEW --\u003e\n\u003cdiv class=\"tng-section\"\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which carbide insert is best for semi-finishing steel at moderate-to-high feed rates with good surface finish?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy WNMG080408-TSF T9115\u003c\/strong\u003e is a precision-ground, 80° trigon carbide turning insert optimized for \u003cstrong\u003efinishing to semi-finishing\u003c\/strong\u003e operations on steel and stainless steel. Compared to the R0.4 variant, the \u003cstrong\u003eR0.8 corner radius\u003c\/strong\u003e provides a stronger cutting edge, better chip thinning effect, and improved surface finish at higher feed rates — making it the preferred choice for medium-feed production turning where both productivity and finish quality matter.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eT9115 grade\u003c\/strong\u003e features a \u003cstrong\u003ePVD TiAlN multi-layer coating\u003c\/strong\u003e over a fine-grain carbide substrate, delivering sharp cutting edges, low cutting forces, and excellent resistance to flank wear and oxidation at elevated temperatures. The \u003cstrong\u003eTSF chipbreaker\u003c\/strong\u003e is Tungaloy’s dedicated finishing geometry with a positive rake angle and optimized groove profile that produces controlled, short chips across a wide feed range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Difference vs. WNMG080404-TSF:\u003c\/strong\u003e The 08 corner radius (R0.8) allows \u003cstrong\u003ehigher feed rates (up to 0.30 mm\/rev)\u003c\/strong\u003e while maintaining good surface finish, and provides a stronger edge for slightly harder or more abrasive workpiece conditions. Choose R0.4 for ultra-fine finishing; choose R0.8 for productive semi-finishing.\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\"\u003eWNMG080408-TSF T9115\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eTungaloy carbide insert\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eWNMG 08 04 08\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003ePVD coated turning insert\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eTSF chipbreaker\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eT9115 grade\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eR0.8 turning insert\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003esteel semi-finishing insert\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003estainless steel turning insert\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eCNC lathe insert\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eWNMG insert for steel\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eISO P15 carbide\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eTiAlN coated insert\u003c\/span\u003e \u003cspan class=\"tng-kw\"\u003eTungaloy turning grade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- MODEL CODE DECODER --\u003e\n\u003cdiv class=\"tng-section\"\u003e\n\u003ch2\u003eModel Code Decoder – WNMG080408-TSF T9115\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\"\u003e08\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eCorner Radius\u003cbr\u003e0.8mm (R0.8)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-code-cell\"\u003e\n\u003cspan class=\"letter\"\u003eTSF\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eChipbreaker\u003cbr\u003eTungaloy Super Finishing\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\"\u003e15\u003c\/span\u003e\u003cspan class=\"meaning\"\u003eISO Application\u003cbr\u003eP15 – Steel Finishing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin-top: 20px;\"\u003eTSF Chipbreaker \u0026amp; R0.8 Corner – What Makes Them Different\u003c\/h3\u003e\n\u003cul style=\"font-size: .92rem; color: #333; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTSF (Tungaloy Super Finishing) geometry:\u003c\/strong\u003e Positive rake angle with narrow chip groove — minimizes cutting resistance, reduces vibration, and produces short, controlled chips at light-to-medium feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR0.8 corner radius advantage:\u003c\/strong\u003e Stronger edge than R0.4 — supports higher feed rates (fn up to 0.30 mm\/rev), better chip thinning, and improved tool life in semi-finishing conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface finish trade-off:\u003c\/strong\u003e R0.8 achieves Ra 1.6 µm easily; Ra 0.8 µm achievable at optimized parameters. For Ra ≤ 0.4 µm, use the R0.4 variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolished rake face:\u003c\/strong\u003e Prevents built-up edge (BUE) on stainless steel and low-carbon steel throughout tool life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\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🔷 PVD TiAlN Multi-Layer Coating\u003c\/strong\u003e\u003cspan\u003eSuperior oxidation resistance up to 900°C. Maintains hardness at elevated temperatures for high-speed finishing and semi-finishing.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 TSF Finishing Chipbreaker\u003c\/strong\u003e\u003cspan\u003ePositive rake geometry with optimized groove profile — excellent chip control from fn 0.08 to 0.30 mm\/rev for productive semi-finishing.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 R0.8 Corner Radius\u003c\/strong\u003e\u003cspan\u003eStronger edge than R0.4 — supports higher feed rates, better chip thinning effect, and improved tool life in semi-finishing conditions.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-feat-card\"\u003e\n\u003cstrong\u003e🔷 Fine-Grain Carbide Substrate\u003c\/strong\u003e\u003cspan\u003eHigh transverse rupture strength (TRS) resists micro-chipping and provides consistent edge integrity across the full tool life.\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 edge geometry for both external turning and facing. More versatile than 55° or 35° diamond inserts for general turning applications.\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\u003e4 usable cutting edges per insert (G-type, double-sided) — maximizes cost efficiency and reduces tooling cost per part by up to 4x.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\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\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eMetric\u003c\/th\u003e\n\u003cth\u003eImperial\u003c\/th\u003e\n\u003c\/tr\u003e\n\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\u003e0.8 mm\u003c\/td\u003e\n\u003ctd\u003e1\/32 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\u003eT9115\u003c\/td\u003e\n\u003ctd\u003eT9115\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\u003eP10–P25, M10–M25\u003c\/td\u003e\n\u003ctd\u003eP10–P25, M10–M25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChipbreaker\u003c\/td\u003e\n\u003ctd\u003eTSF (Finishing)\u003c\/td\u003e\n\u003ctd\u003eTSF (Finishing)\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\u003ch3\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003ctable class=\"tng-table\"\u003e\n\u003cthead\u003e\n\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\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel (P)\u003c\/td\u003e\n\u003ctd\u003e180–320\u003c\/td\u003e\n\u003ctd\u003e591–1050\u003c\/td\u003e\n\u003ctd\u003e0.10–0.30\u003c\/td\u003e\n\u003ctd\u003e0.004–0.012\u003c\/td\u003e\n\u003ctd\u003e0.3–2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlloy Steel (P)\u003c\/td\u003e\n\u003ctd\u003e150–280\u003c\/td\u003e\n\u003ctd\u003e492–919\u003c\/td\u003e\n\u003ctd\u003e0.10–0.25\u003c\/td\u003e\n\u003ctd\u003e0.004–0.010\u003c\/td\u003e\n\u003ctd\u003e0.3–1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel (M)\u003c\/td\u003e\n\u003ctd\u003e100–200\u003c\/td\u003e\n\u003ctd\u003e328–656\u003c\/td\u003e\n\u003ctd\u003e0.08–0.20\u003c\/td\u003e\n\u003ctd\u003e0.003–0.008\u003c\/td\u003e\n\u003ctd\u003e0.2–1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron (K)\u003c\/td\u003e\n\u003ctd\u003e120–220\u003c\/td\u003e\n\u003ctd\u003e394–722\u003c\/td\u003e\n\u003ctd\u003e0.10–0.25\u003c\/td\u003e\n\u003ctd\u003e0.004–0.010\u003c\/td\u003e\n\u003ctd\u003e0.5–2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: .82rem; color: #666;\"\u003e* Parameters are starting recommendations. The R0.8 corner radius supports higher feed rates than R0.4 — adjust based on machine rigidity, coolant, and required surface finish.\u003c\/p\u003e\n\u003ch3\u003eCorner Radius Comparison – R0.4 vs R0.8\u003c\/h3\u003e\n\u003ctable class=\"tng-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eWNMG080404-TSF (R0.4)\u003c\/th\u003e\n\u003cth\u003eWNMG080408-TSF (R0.8) ✓\u003c\/th\u003e\n\u003c\/tr\u003e\n\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\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\u003e0.30 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\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\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChip Thinning Effect\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003eHigher\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest Application\u003c\/td\u003e\n\u003ctd\u003eUltra-fine finishing\u003c\/td\u003e\n\u003ctd\u003eProductive semi-finishing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Sensitivity\u003c\/td\u003e\n\u003ctd\u003eLower\u003c\/td\u003e\n\u003ctd\u003eSlightly Higher\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- COMPATIBLE TOOL HOLDERS --\u003e\n\u003cdiv class=\"tng-toolholder-box\"\u003e\n\u003ch3\u003e🔧 Compatible Tool Holders (WNMG080408)\u003c\/h3\u003e\n\u003cp style=\"font-size: .85rem; opacity: .85; margin-bottom: 14px;\"\u003eThe WNMG080408 insert requires MWLNR\/L or DWLNR\/L series tool holders with an 08 pocket designation:\u003c\/p\u003e\n\u003cdiv class=\"tng-toolholder-grid\"\u003e\n\u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eMWLNR\/L 1212H08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e12mm shank, 95° lead angle, external turning\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eMWLNR\/L 1616H08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e16mm shank, 95° lead angle, external turning\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eMWLNR\/L 2020K08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e20mm shank, heavy-duty external turning\u003c\/div\u003e\n\u003c\/div\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 external turning\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eDWLNR\/L 2020K08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003e20mm shank, 93° lead angle, facing \u0026amp; turning\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-th-card\"\u003e\n\u003cdiv class=\"th-model\"\u003eA20R-MWLNR08\u003c\/div\u003e\n\u003cdiv class=\"th-desc\"\u003eBoring bar, 20mm bore, internal turning\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: .8rem; opacity: .75; margin-top: 12px;\"\u003eContact us to confirm compatibility with your specific machine setup and turret type.\u003c\/p\u003e\n\u003c\/div\u003e\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\u003eProduction Shaft Turning\u003c\/strong\u003eSemi-finishing of transmission shafts, spindles, and axles in carbon and alloy steel at productive feed rates.\u003c\/div\u003e\n\u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eBearing \u0026amp; Seal Surfaces\u003c\/strong\u003eAchieving Ra 0.8–1.6 µm on bearing journals and seal seats where surface finish and roundness are critical.\u003c\/div\u003e\n\u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eStainless Steel Components\u003c\/strong\u003eSemi-finishing of 304, 316, and duplex stainless steel parts with controlled chip evacuation and minimal BUE.\u003c\/div\u003e\n\u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eAutomotive Production\u003c\/strong\u003eHigh-volume semi-finishing of crankshafts, camshafts, gearbox shafts, and CV joint components.\u003c\/div\u003e\n\u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eHydraulic Cylinder Rods\u003c\/strong\u003ePrecision semi-finishing of cylinder rods and piston rods requiring consistent diameter and surface quality.\u003c\/div\u003e\n\u003cdiv class=\"tng-app-card\"\u003e\n\u003cstrong\u003eGeneral Engineering\u003c\/strong\u003eVersatile semi-finishing of flanges, hubs, couplings, and general machined steel components in batch production.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\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\n\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\u003eSpeed Range\u003c\/th\u003e\n\u003c\/tr\u003e\n\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\u003eVery High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"highlight\"\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\u003eHigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\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, light interrupted cuts\u003c\/td\u003e\n\u003ctd\u003eMedium-High\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\u003eMedium-High\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\u003eRoughing, heavy interrupted cuts\u003c\/td\u003e\n\u003ctd\u003eMedium\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\u003eHigh\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. PVD grades (T-series) = sharp edges, low forces. CVD grades (AH-series) = high-speed wear resistance.\u003c\/p\u003e\n\u003c\/div\u003e\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\u003eApplication engineering support to help you select the right grade and geometry.\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\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\"\u003eMichael S.\u003c\/div\u003e\n\u003cdiv class=\"country\"\u003e🇺🇸 United States\u003c\/div\u003e\n\u003cp\u003e\"Using WNMG080408-TSF T9115 for semi-finishing 4140 steel shafts at fn 0.22 mm\/rev. Surface finish is consistently Ra 1.2 — perfect for our bearing seat requirements. Tool life is excellent and predictable across the whole batch.\"\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\"\u003eThomas K.\u003c\/div\u003e\n\u003cdiv class=\"country\"\u003e🇩🇪 Germany\u003c\/div\u003e\n\u003cp\u003e\"Sehr gute Leistung bei der Halbschlichtbearbeitung von 42CrMo4. Die R0.8-Ecke erlaubt höhere Vorschübe als R0.4 bei gleichzeitig guter Oberflächenqualität. Standzeit übertrifft unsere bisherigen Werkzeuge deutlich.\"\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\"\u003eMarco F.\u003c\/div\u003e\n\u003cdiv class=\"country\"\u003e🇮🇹 Italy\u003c\/div\u003e\n\u003cp\u003e\"Ottimo inserto per la semi-finitura di acciaio inox 316L. La geometria TSF gestisce bene i trucioli anche a velocità moderate. Ra 1.6 raggiunto facilmente, Ra 0.8 con parametri ottimizzati. Prodotto originale, consegna puntuale.\"\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 M.\u003c\/div\u003e\n\u003cdiv class=\"country\"\u003e🇯🇵 Japan\u003c\/div\u003e\n\u003cp\u003e\"S45Cの大批量生産に使用。R0.8のおかげで送り量を上げても良好な表面粗さが得られます。工具寿命が安定しており、コスト当たりの加工数が大幅に改善されました。\"\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\"\u003eJames W.\u003c\/div\u003e\n\u003cdiv class=\"country\"\u003e🇬🇧 United Kingdom\u003c\/div\u003e\n\u003cp\u003e\"Switched from a competitor insert to WNMG080408-TSF T9115 for our stainless steel rod production. Chip control is much better and we’re getting consistent Ra 1.2 across 200+ parts per edge. Very impressed with the tool life.\"\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\"\u003eZhang L.\u003c\/div\u003e\n\u003cdiv class=\"country\"\u003e🇨🇳 China\u003c\/div\u003e\n\u003cp\u003e\"用于45号钢半精加工，进给0.20mm\/rev，表面粗糙度Ra1.6轻松达到。R0.8圆弧比R0.4更适合我们的生产节奏，刷刀次数明显增加。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\"\u003ePedro A.\u003c\/div\u003e\n\u003cdiv class=\"country\"\u003e🇧🇷 Brazil\u003c\/div\u003e\n\u003cp\u003e\"Excelente inserto para semi-acabamento de aço carbono. O raio R0.8 permite avancos maiores mantendo boa qualidade superficial. Vida da ferramenta muito consistente na produção em série.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\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 WNMG080408 (R0.8) over WNMG080404 (R0.4)?\u003c\/div\u003e\n\u003cdiv class=\"tng-faq-a\"\u003eChoose \u003cstrong\u003eR0.8 (080408)\u003c\/strong\u003e when you need higher feed rates (fn up to 0.30 mm\/rev), better edge strength for semi-finishing, or when Ra 0.8–1.6 µm is acceptable. Choose \u003cstrong\u003eR0.4 (080404)\u003c\/strong\u003e when ultra-fine surface finish (Ra ≤ 0.4 µm) is required, or when machining slender workpieces where vibration is a concern. R0.8 is the more productive choice for batch production; R0.4 is the precision finishing choice.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-faq\"\u003e\n\u003cdiv class=\"tng-faq-q\"\u003eQ2: What is the TSF chipbreaker and what feed range does it cover?\u003c\/div\u003e\n\u003cdiv class=\"tng-faq-a\"\u003eTSF stands for \u003cstrong\u003eTungaloy Super Finishing\u003c\/strong\u003e — a positive-rake chipbreaker geometry designed for \u003cstrong\u003efn 0.08–0.30 mm\/rev\u003c\/strong\u003e (with R0.8 corner). It produces short, controlled chips, minimizes cutting forces, and prevents built-up edge (BUE) on stainless steel. For heavier feeds (fn \u0026gt; 0.30 mm\/rev), consider the TM (medium) chipbreaker instead.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-faq\"\u003e\n\u003cdiv class=\"tng-faq-q\"\u003eQ3: Which tool holder do I need for the WNMG080408 insert?\u003c\/div\u003e\n\u003cdiv class=\"tng-faq-a\"\u003eYou need an \u003cstrong\u003eMWLNR\/L or DWLNR\/L series tool holder\u003c\/strong\u003e with an \u003cstrong\u003e08 pocket designation\u003c\/strong\u003e (e.g., MWLNR2020K08 for a 20mm shank). The pocket size must match — do not use a 06-pocket holder with this insert. For boring applications, use an A-series boring bar (e.g., A20R-MWLNR08).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-faq\"\u003e\n\u003cdiv class=\"tng-faq-q\"\u003eQ4: Can I use T9115 for stainless steel turning?\u003c\/div\u003e\n\u003cdiv class=\"tng-faq-a\"\u003eYes. T9115 covers \u003cstrong\u003eISO M10–M25\u003c\/strong\u003e (stainless steel) in addition to P10–P25 (steel). The PVD TiAlN coating and sharp TSF geometry minimize BUE and work hardening on austenitic stainless (304, 316) and martensitic grades. For duplex or super-austenitic stainless, consider Tungaloy’s dedicated M-grade inserts for optimal performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tng-faq\"\u003e\n\u003cdiv class=\"tng-faq-q\"\u003eQ5: How many cutting edges does the WNMG080408 have?\u003c\/div\u003e\n\u003cdiv class=\"tng-faq-a\"\u003eThe WNMG080408 is a \u003cstrong\u003edouble-sided insert with 4 usable cutting edges\u003c\/strong\u003e (G-type fixing). When one edge is worn, rotate or flip the insert to use the next edge — maximizing cost efficiency. With 4 edges per insert, your effective tooling cost per part is reduced by up to 75% compared to single-sided inserts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- GRADE TIP BOX --\u003e\n\u003cdiv class=\"tng-tip-box\"\u003e\n\u003ch3\u003e💡 Grade \u0026amp; Corner Radius Selection Tips – Tungaloy WNMG Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Guide:\u003c\/strong\u003e R0.4 = ultra-fine finishing (Ra ≤ 0.4 µm, fn ≤ 0.20) | R0.8 = productive semi-finishing (Ra 0.8–1.6 µm, fn ≤ 0.30) | R1.2 = roughing (fn ≤ 0.50).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT9105 (PVD):\u003c\/strong\u003e Maximum hardness for high-speed finishing of hardened steel. Lowest toughness in the T-series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT9115 (PVD) — This Product:\u003c\/strong\u003e Best balance of wear resistance and toughness for finishing to semi-finishing of steel and stainless.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT9125 (PVD):\u003c\/strong\u003e More toughness than T9115 — choose for light interrupted cuts or variable stock conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAH725 (CVD):\u003c\/strong\u003e High-speed semi-finishing to roughing. Superior crater wear resistance for dry cutting of steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAH8015 (CVD):\u003c\/strong\u003e Maximum toughness for heavy roughing and interrupted cuts in steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker guide:\u003c\/strong\u003e TSF = finishing\/semi-finishing (fn 0.08–0.30) | TM = medium (fn 0.15–0.40) | TR = roughing (fn 0.25–0.60). Always match chipbreaker to your feed rate first.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePVD vs CVD:\u003c\/strong\u003e PVD (T-series) = sharp edges, low forces, stainless \u0026amp; finishing. CVD (AH-series) = high speed, wear resistance, steel roughing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43178120478892,"sku":"WNMG080408-TSF T9115","price":79.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/WNMG080408-TSFT9115.jpg?v=1776522355","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-wnmg080408-tsf-t9115-carbide-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}