{"product_id":"iscar-5668336-milling-insert-t490-lnmt-1306pntr-ic840","title":"Iscar 5668336 Milling Insert T490 Lnmt 1306PNTR IC840","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 5668336 is a solid carbide milling insert designed for high-performance metal removal in demanding machining applications. It carries the ANSI and ISO designation T490 LNMT 1306PNTR in grade IC840, a PVD-coated carbide grade featuring a multilayer AlTiN, TiAlSiN, and TiSiN coating system optimized for elevated cutting temperatures. The insert has a butterfly (LNMT) shape with a negative rake angle and a helical cutting edge style, allowing it to seat securely in T490 LNK13 series milling bodies. With four usable cutting edges, a 13.05 mm thickness, and a maximum depth of cut of 12.50 mm, this insert delivers consistent tool life across interrupted and continuous cuts. It is held by screw clamping and is double-sided.\u003c\/p\u003e\n\u003cp\u003eThis insert is engineered for milling stainless steel, superalloys, and titanium — material application codes M and S per ISO classification. These are among the most thermally and mechanically demanding workpiece materials in precision manufacturing, making the IC840 PVD grade and multilayer coating particularly well suited. Typical installation scenarios include face milling and shoulder milling operations on CNC machining centers where the T490 LNMT cutter body is already in use. The PNTR chip breaker geometry supports stable chip control in the tough, work-hardening materials common in aerospace, medical, and oil and gas component production.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eIC840 PVD-coated grade with AlTiN, TiAlSiN, and TiSiN multilayer coating for heat and wear resistance\u003c\/li\u003e\n  \u003cli\u003eHelical cutting edge style reduces cutting forces on difficult-to-machine alloys\u003c\/li\u003e\n  \u003cli\u003eDouble-sided insert with 4 cutting edges per insert for extended tool economy\u003c\/li\u003e\n  \u003cli\u003ePNTR chip breaker geometry designed for stainless steel, superalloys, and titanium\u003c\/li\u003e\n  \u003cli\u003eNegative rake, 90-degree included angle for rigid, predictable seating in compatible cutter bodies\u003c\/li\u003e\n  \u003cli\u003eInsert size code 1306 with 0.80 mm corner radius for controlled edge definition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with T490 LNK13 series milling cutter bodies as stated by the manufacturer. Cutter series compatibility is designated T490 LNK13 per supplier specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or tooling technician. The machine spindle must be fully stopped and locked out before inserting or indexing cutting inserts. Use the appropriate Torx or hex key as specified by the cutter body manufacturer to secure the clamping screw — do not overtighten, as this can fracture the carbide insert. Inspect the insert pocket and seating surfaces for chips or debris before seating a new insert to ensure proper contact and runout.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: LNMT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Butterfly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HELITANG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: IC840\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN, TiAlSiN, TiSiN (PVD Process)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Helical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: PNTR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 13.05 mm (0.5140 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 6.65 mm (0.2620 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 13.74 mm (0.5409 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.80 mm (1\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.2620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 12.50 mm (0.4920 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 1306\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double Sided\u003c\/strong\u003e: Double\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Superalloys and Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Material Code\u003c\/strong\u003e: M, S\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Code\u003c\/strong\u003e: T490 LNMT 1306PNTR IC840\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: T490 LNMT 1306PNTR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO 13399\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ISCAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5668336\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51730693128498,"sku":"5668336","price":369.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a974871ca204db5f929e95a6599a9333.jpg?v=1788721459","url":"https:\/\/voomisupply.com\/products\/iscar-5668336-milling-insert-t490-lnmt-1306pntr-ic840","provider":"Voomi Supply","version":"1.0","type":"link"}