{"product_id":"accupro-12176905-corner-radius-end-mill-0-0781in-4-flute","title":"Accupro 12176905 Corner Radius End Mill 0.0781in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12176905 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It has a 0.0781-inch cutting diameter, a 0.01-inch corner radius, and four right-hand spiral flutes that deliver smooth chip evacuation and consistent surface finishes. The tool is coated with TiCN (titanium carbonitride) for improved hardness and wear resistance at elevated cutting temperatures. With a 30-degree helix angle and centercutting capability, it handles plunge cuts as well as peripheral and slot milling. Machinists and CNC operators working in job shops or production environments will find this end mill suited to close-tolerance finishing work on ferrous and non-ferrous materials.\u003c\/p\u003e\u003cp\u003eThis end mill is built for milling operations that require a controlled corner radius to blend radii into part features, reduce stress concentrations, or match a specific drawing callout. The 0.25-inch (1\/4-inch) length of cut accommodates shallow-to-moderate depth passes, while the 1\/8-inch shank fits standard collet systems found on CNC machining centers and manual knee mills. Its micrograin carbide substrate and TiCN coating make it a practical choice for steel, stainless steel, cast iron, and hardened materials where tool life and dimensional consistency matter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.01-inch corner radius with a tolerance of plus or minus 0.001 inches for repeatable blended-radius features\u003c\/li\u003e\n\u003cli\u003eTiCN coating provides high surface hardness and improved wear resistance compared to uncoated carbide\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate resists chipping and maintains edge sharpness in demanding cuts\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute spiral with 30-degree helix for efficient chip removal\u003c\/li\u003e\n\u003cli\u003eSingle-end configuration with a 1\/8-inch shank for compatibility with standard collet toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use corner radius end mill compatible with standard 1\/8-inch collet toolholders on CNC machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or collet is de-energized before inserting or removing the end mill. Use a torque-rated collet nut wrench appropriate for the collet system to secure the shank — do not overtighten or use makeshift tools. Verify runout with a dial indicator before beginning production cuts to protect both the tool and the workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.0781 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0002 \/ -0.0008 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.01 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.625 inches (1\/4 inch nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inch)\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: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\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\u003ePackage Dimensions\u003c\/strong\u003e: 2.13 x 0.25 x 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: 12176905\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51731858948402,"sku":"12176905","price":30.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2d5702321fcb73c1d329c3cbaaf21c1a_242fe420-8a3e-496a-ade9-f60fe084de0f.jpg?v=1788735672","url":"https:\/\/voomisupply.com\/products\/accupro-12176905-corner-radius-end-mill-0-0781in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}