{"product_id":"accupro-12182885-corner-radius-end-mill-3-8-in-4-flute","title":"Accupro 12182885 Corner Radius End Mill 3\/8 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12182885 is a single-end corner radius end mill designed for precision milling in ferrous and non-ferrous materials. Built from micrograin solid carbide, it delivers the rigidity and wear resistance required for demanding cutting operations. The tool features a 0.03 inch corner radius that reduces stress concentrations at the cutting edge, extending tool life in high-cycle production environments. A TiCN coating lowers friction and improves hardness at the cutting surface. With a 40-degree helix angle and 4 right-hand spiral flutes, the 12182885 promotes efficient chip evacuation and stable cutting performance. Licensed machinists and CNC tooling specialists are the primary installers and operators of this tool.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for stub-length milling applications in vertical and horizontal machining centers, as well as manual milling machines. The 3\/8 inch mill diameter and 5\/8 inch length of cut make it appropriate for slotting, profiling, and contouring passes where a corner radius is specified to reduce part stress or match a drawing callout. The centercutting design allows plunge entry. Right-hand cutting direction is standard for conventional spindle rotation. This tool is appropriate for shops working in tool steel, stainless, aluminum, and similar materials where TiCN coating provides an advantage.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for rigidity and extended tool life\u003c\/li\u003e\n\u003cli\u003eTiCN coating reduces friction and improves surface hardness at the cutting edge\u003c\/li\u003e\n\u003cli\u003e0.03 inch corner radius reduces stress at part corners and protects the cutting edge\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle with 4 right-hand spiral flutes promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting design permits direct plunge entry without a pilot hole\u003c\/li\u003e\n\u003cli\u003eStub-length geometry provides added rigidity in short-reach applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling selection for 3\/8 inch collet or end mill holder setups on CNC machining centers and manual milling machines requiring a corner radius end mill with a 3\/8 inch shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or CNC tooling technician. The machine spindle must be fully stopped and the tool changer or spindle lock engaged before mounting or removing the end mill. Verify collet size matches the 3\/8 inch shank diameter before tightening. Inspect the tool for edge chipping or coating wear before each use, and confirm runout is within acceptable limits after seating in the holder.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.03 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus or minus 0.00150 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.002500 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12182885\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51730917097778,"sku":"12182885","price":63.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/935066285acd9248a91d691de9285c65.jpg?v=1788724754","url":"https:\/\/voomisupply.com\/products\/accupro-12182885-corner-radius-end-mill-3-8-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}