{"product_id":"accupro-12182729-corner-radius-end-mill-1-8-in-4-flute","title":"Accupro 12182729 Corner Radius End Mill 1\/8 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12182729 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 1\/8 inch diameter with a 0.045 inch corner radius and a TiCN (Titanium Carbonitride) coating that increases surface hardness and reduces friction during cutting. The micrograin carbide substrate supports sharper cutting edges and extended tool life compared to standard carbide grades. With 4 right-hand spiral flutes and a centercutting geometry, this end mill handles slotting, profiling, and plunge operations. It is installed and used by machinists and tool-and-die professionals on CNC mills and manual milling machines.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for applications requiring tight corner radii in hardened and abrasive materials, including alloy steels, stainless steels, cast iron, and non-ferrous metals. The TiCN coating performs well in dry or minimal-lubrication cutting environments. The stub length of cut at 1\/4 inch provides rigidity for high-precision finishing passes where deflection must be minimized. It is a single-end tool and is typically used in high-speed CNC profiling, die work, and mold machining where corner geometry and surface finish are critical requirements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for sharp edges and extended tool life\u003c\/li\u003e\n  \u003cli\u003eTiCN coating improves wear resistance and reduces heat buildup at the cutting edge\u003c\/li\u003e\n  \u003cli\u003e0.045 inch corner radius reduces stress concentrations and improves corner finish quality\u003c\/li\u003e\n  \u003cli\u003e4 right-hand spiral flutes with centercutting capability for slotting and plunge milling\u003c\/li\u003e\n  \u003cli\u003eStub length of cut (1\/4 inch) maximizes rigidity and minimizes deflection\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting direction compatible with standard CNC and manual milling setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style solid carbide end mill for use in standard 1\/8 inch collet chucks, end mill holders, or shrink-fit toolholders on CNC machining centers and manual milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists following shop safety protocols. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the 1\/8 inch shank fully into the collet or toolholder and torque the retention mechanism to the toolholder specification before initiating a cut. Verify runout with a dial indicator before beginning finish passes, as excessive runout will accelerate edge wear on small-diameter carbide tools.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/8 inch (0.1250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.045 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1\/4 inch (1.5000 inches decimal reference per supplier data — stub flute length)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\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\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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.002500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.00150 inches\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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12182729\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748477206834,"sku":"12182729","price":29.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2d5702321fcb73c1d329c3cbaaf21c1a_04e22c35-1201-424c-9efe-7060f7bed137.jpg?v=1788894202","url":"https:\/\/voomisupply.com\/products\/accupro-12182729-corner-radius-end-mill-1-8-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}