{"product_id":"accupro-12180513-corner-radius-end-mill-1-8-in-4-flute","title":"Accupro 12180513 Corner Radius End Mill 1\/8 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12180513 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. It features a 1\/8 inch diameter, a 0.015 inch corner radius, and four right-hand spiral flutes with a 40-degree helix angle. The AlTiN coating provides thermal resistance and extended tool life in high-temperature cutting environments. With a length of cut of 1\/2 inch and a 1-1\/2 inch overall length, this single-end, centercutting tool handles both plunge and peripheral milling. Micrograin carbide substrate supports tight tolerances and edge retention across extended runs.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for CNC machining centers and manual mills where a corner radius profile is required to reduce stress concentrations and improve surface finish at part edges. Typical applications include die and mold work, aerospace component finishing, and general precision part machining. The centercutting geometry allows direct plunge entry without a pre-drilled hole, adding versatility in multi-axis setups. The 1\/8 inch shank diameter fits standard collets and tool holders in that bore size.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.015 inch corner radius reduces edge chipping and stress risers on finished parts\u003c\/li\u003e\n\u003cli\u003eAlTiN coating extends tool life in high-heat, dry, and semi-dry cutting conditions\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate supports tight dimensional tolerances\u003c\/li\u003e\n\u003cli\u003eFour right-hand flutes with 40-degree helix improve chip evacuation and surface finish\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge milling without pilot hole\u003c\/li\u003e\n\u003cli\u003eVariable index flute spacing reduces chatter and harmonic vibration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or new-install corner radius end mill for any CNC or manual milling setup accepting a 1\/8 inch shank diameter collet or tool holder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Ensure the spindle is fully stopped and the machine is in an E-stop or locked-out state before changing tooling. Seat the shank to the full recommended insertion depth in the collet and torque the collet nut to the tool holder manufacturer's specification. Confirm runout with a dial indicator before initiating the cut program.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1\/2 inch\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: 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus or minus 0.0015 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\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\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\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\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: 12180513\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51750798491954,"sku":"12180513","price":26.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1df6e940f7de2fe6c267bc8ded7dc352.jpg?v=1788919837","url":"https:\/\/voomisupply.com\/products\/accupro-12180513-corner-radius-end-mill-1-8-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}