{"product_id":"tungaloy-16ir-1-0iso-b-ah725-internal-threading-carbide-insert","title":"Tungaloy 16IR 1.0ISO-B AH725 Internal Threading Carbide Insert (10pcs)","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTUNGALOY 16IR 1.0ISO-B AH725\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eInternal ISO Metric Specialist | 1.0mm Pitch | AH725 Nano-PVD Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy 16IR 1.0ISO-B AH725\u003c\/strong\u003e is a high-precision \u003cstrong\u003einternal threading insert\u003c\/strong\u003e engineered for 1.0mm pitch ISO metric threads. Ideal for internal bores in M10 and larger fasteners, this \u003cstrong\u003eindexable carbide insert\u003c\/strong\u003e utilizes the premium \u003cstrong\u003eAH725 PVD coated carbide\u003c\/strong\u003e grade, renowned for its exceptional edge toughness and wear resistance during \u003cstrong\u003eCNC machining\u003c\/strong\u003e. The \"-B\" chipbreaker geometry is a critical feature for \u003cstrong\u003einternal threading\u003c\/strong\u003e, as it curls and breaks chips in confined spaces, preventing the common issue of chip accumulation inside the bore. Made in Japan, this tool is optimized for \u003cstrong\u003eprecision machining\u003c\/strong\u003e in stainless steel, steel, and high-temperature alloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eTechnical Designation Breakdown\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e16\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eSize (IC)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eI\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eInternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e1.0\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePitch (mm)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eISO\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMetric\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eB\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eChipbreaker\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eTechnical Specifications: Metric vs. Imperial\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eTechnical Feature\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial (TPI)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eThread Pitch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e25.4 Threads Per Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e9.525 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/8 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eFastener Application\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eM10, M12, M14 Fine\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eStandard Internal 1.0 Pitch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 20px;\"\u003e\u003cstrong\u003ePitch Selection Guidance:\u003c\/strong\u003e The 1.0ISO is a \u003cstrong\u003eFull Profile\u003c\/strong\u003e insert. Unlike partial profile tools, this insert cuts the complete thread form—including the crest and root—at a 60° angle. This ensures the \u003cstrong\u003einternal threading\u003c\/strong\u003e process results in a thread that meets strict ISO tolerances for fit and strength, without needing to adjust for thread depth manually.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMaterial: AH725 PVD High-Stability Carbide\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAH725 grade\u003c\/strong\u003e is Tungaloy's premium solution for \u003cstrong\u003estainless steel turning\u003c\/strong\u003e and specialized threading. It features a micro-grain substrate that resists chipping, paired with a nano-multilayered PVD coating for extreme heat resistance. This \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e industry favorite ensures consistent \u003cstrong\u003etool life\u003c\/strong\u003e and high surface quality in both continuous and interrupted cuts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f;\"\u003e-B Geometry: Internal Chip Management (槽型)\u003c\/h3\u003e\n\u003cp\u003eInternal threading is notoriously difficult due to chip evacuation. The \u003cstrong\u003e-B chipbreaker\u003c\/strong\u003e geometry is engineered to curl the chip tightly, allowing it to be flushed out easily by coolant. This protects the internal thread flanks from \"re-cutting\" chips and ensures a mirror-like finish inside the hole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cp\u003eOptimized for \u003cstrong\u003eP (Steel) and M (Stainless Steel)\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 90 - 180 m\/min (295 - 590 SFM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Radial Depth (ap):\u003c\/strong\u003e 0.61 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Passes:\u003c\/strong\u003e 6 - 10 passes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: When threading internally, use high-pressure through-spindle coolant to maximize chip evacuation performance of the -B chipbreaker.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Reviews\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for M12 Fine Threads\"\u003c\/strong\u003e - \u003cem\u003eYuri K., Russia\u003c\/em\u003e\u003cbr\u003e\"Very stable and predictable. The AH725 grade is my go-to for stainless work.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"No more chip nesting\"\u003c\/strong\u003e - \u003cem\u003eKen J., Canada\u003c\/em\u003e\u003cbr\u003e\"The -B geometry really works. Chips come out small and don't scratch the bore. Great tool.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great toughness\"\u003c\/strong\u003e - \u003cem\u003eSatoshi W., Japan\u003c\/em\u003e\u003cbr\u003e\"Original Japanese quality. Handles interrupted cuts in internal bores without edge failure.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Mirror Finish\"\u003c\/strong\u003e - \u003cem\u003eMarco P., Italy\u003c\/em\u003e\u003cbr\u003e\"The surface quality inside the thread is incredible. Definitely helps with our QC inspections.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping, Quality Tool\"\u003c\/strong\u003e - \u003cem\u003eLiam O., Ireland\u003c\/em\u003e\u003cbr\u003e\"Fits my SNR boring bar perfectly. Thread profile is sharp and accurate.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eTechnical Q\u0026amp;A\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which boring bar does this fit?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It fits all standard **SNR** internal threading bars with a size 16 pocket (3\/8\" IC).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use this for external threads?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: No. This is an **IR** (Internal Right) insert. You need the **ER** series for external work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is AH725 good for Titanium?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Yes, AH725 is a high-toughness grade that performs exceptionally well in Aerospace materials like Titanium and Inconel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Machining Tip: Grade Comparison\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eFor \u003cstrong\u003einternal threading\u003c\/strong\u003e, PVD grades like **AH725** are preferred over CVD because the coating is thinner and the edge is sharper. This reduces cutting pressure, which is critical when working with long-overhang boring bars to prevent chatter and ensure high \u003cstrong\u003etool life\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Scraping Protection Active\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43143202406572,"sku":"16IR10ISO-B AH725","price":94.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_16IR_1.0ISO-B_AH725_Internal_Threading_Carbide_Insert_for_M10_1.0mm_Pitch_ISO_Metric_Threads.jpg?v=1773388542","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-16ir-1-0iso-b-ah725-internal-threading-carbide-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}