{"product_id":"accupro-12177681-corner-radius-end-mill-1-8-in-5-flute-altin","title":"Accupro 12177681 Corner Radius End Mill 1\/8 in 5 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12177681 is a 5-flute solid carbide corner radius end mill designed for high-performance milling in demanding metalworking applications. It features a 1\/8 inch cutting diameter, a 1\/2 inch length of cut, and a 0.0200 inch corner radius that reduces stress concentration at the cutting edge and extends tool life. The AlTiN coating provides thermal resistance and hardness at elevated cutting temperatures. At 1-1\/2 inches overall length with a matching 1\/8 inch shank diameter, this is a compact, precision tool suited for CNC machining centers and milling machines run by machinists and toolroom technicians.\u003c\/p\u003e\u003cp\u003eThis end mill is built for finish and semi-finish milling passes in ferrous and hardened materials including alloy steels, tool steels, and cast iron. The 40-degree helix angle promotes smooth chip evacuation and reduces chatter at higher feed rates. Its centercutting geometry allows plunge entry, giving the operator flexibility in toolpath strategy. The micrograin carbide substrate delivers the edge retention and rigidity required for tight-tolerance work in precision part manufacturing and die-and-mold applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.0200 inch corner radius reduces cutting-edge chipping and improves workpiece surface finish\u003c\/li\u003e\n\u003cli\u003eAlTiN coating provides high heat resistance and extended tool life in dry and semi-dry cutting conditions\u003c\/li\u003e\n\u003cli\u003e5-flute design increases feed rates and improves surface finish compared to 4-flute equivalents at the same diameter\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle promotes efficient chip evacuation and reduces vibration\u003c\/li\u003e\n\u003cli\u003eCentercutting capability allows direct plunge entry without a pre-drilled hole\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate supports tight tolerances and consistent edge geometry across the tool life\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand spiral flute direction for standard CNC milling spindle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide corner radius end mill compatible with standard CNC milling machines and machining centers accepting a 1\/8 inch straight shank toolholder or collet.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per applicable shop safety procedures. Verify collet or toolholder runout before use, as excessive runout at this diameter will accelerate wear and compromise corner radius tolerance. Consult the machine manufacturer and tooling guidelines for appropriate cutting parameters; do not exceed the toolholder's rated speed or clamping torque range.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 1\/8 inch (0.1250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\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\u003eCorner Radius\u003c\/strong\u003e: 0.0200 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\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.002500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 \/ -0.0004 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\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\u003eSingle or Double End\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: 12177681\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51728281764146,"sku":"12177681","price":25.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7d918673692cda3d07cc2b22bdc7284b.jpg?v=1788690237","url":"https:\/\/voomisupply.com\/products\/accupro-12177681-corner-radius-end-mill-1-8-in-5-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}