{"product_id":"accupro-12180382-corner-rounding-end-mill-1-4-in-4-flute-ticn","title":"Accupro 12180382 Corner Rounding End Mill 1\/4 in 4 Flute Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12180382 is a double-end, solid carbide corner rounding end mill designed for machining precise convex radii on workpiece edges. It carries a 0.046 inch radius and a 0.25 inch mill diameter with a tip diameter of 0.153 inches. The tool features a TiCN (Titanium Carbonitride) coating that improves surface hardness and wear resistance compared to uncoated carbide. With 4 flutes and right-hand cutting and flute geometry, it is suited for finishing passes on ferrous and non-ferrous materials in CNC milling applications. Machinists and tool-and-die professionals are the primary users of this type of end mill.\u003c\/p\u003e\u003cp\u003eThis end mill is used in CNC machining centers and manual milling operations where consistent edge rounding and radius blending are required. The double-end design provides two usable cutting ends, extending tool life and reducing per-part tooling cost. Typical applications include edge prep on mold components, die parts, and general precision machined components where a controlled radius must be held to close tolerance. The 1\/4 inch shank diameter fits standard ER and straight-bore collet systems commonly found in vertical machining centers and CNC routers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDouble-end design provides two cutting ends for extended tool service life\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction delivers rigidity and dimensional stability at higher cutting speeds\u003c\/li\u003e\n\u003cli\u003eTiCN coating increases surface hardness and reduces built-up edge on ferrous materials\u003c\/li\u003e\n\u003cli\u003e0.046 inch corner radius suited for fine edge rounding and blending operations\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand helix geometry for standard CNC milling spindle compatibility\u003c\/li\u003e\n\u003cli\u003e4-flute configuration supports smooth surface finish on finishing passes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use corner rounding end mill for CNC machining centers and manual mills accepting a 1\/4 inch straight shank. No specific machine model compatibility was stated in the product data.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of end mills should be performed by a qualified machinist following shop safety procedures. Always power down and lock out the spindle before changing tooling. Secure the 1\/4 inch shank in a properly sized collet or end mill holder and torque to the collet nut specification listed by the toolholder manufacturer. Verify runout with a dial indicator before taking the first cut, as excessive runout accelerates edge wear and reduces radius accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.046 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Diameter\u003c\/strong\u003e: 0.153 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Double End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: 12180382\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51736569577778,"sku":"12180382","price":145.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5565d0d1c1021769a08e570364648d02.jpg?v=1788778720","url":"https:\/\/voomisupply.com\/products\/accupro-12180382-corner-rounding-end-mill-1-4-in-4-flute-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}