{"product_id":"accupro-12182881-corner-radius-end-mill-3-8-in-4-flute","title":"Accupro 12182881 Corner Radius End Mill 3\/8 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12182881 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 3\/8-inch diameter, a 0.01-inch corner radius, and a TiCN (Titanium Carbonitride) coating that improves wear resistance and extends tool life in ferrous and non-ferrous applications. With four right-hand spiral flutes and a centercutting design, this end mill handles both plunge cuts and peripheral milling. Micrograin carbide construction provides added rigidity and edge retention at higher feed rates. It is a single-end, stub-length tool with a 2-inch overall length.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for use on CNC machining centers and manual mills in job shop, production, and toolroom settings. The stub-length configuration improves rigidity in applications where deflection or chatter is a concern. The TiCN coating makes it well-suited for milling alloy steels, tool steels, cast iron, and similar hard materials. Machinists and tool-and-die professionals typically reach for this geometry when a small, controlled corner radius is required to reduce stress concentrations at part features.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/8-inch mill diameter with matching 3\/8-inch shank diameter for direct collet or end mill holder mounting\u003c\/li\u003e\n\u003cli\u003e0.01-inch corner radius reduces stress risers and improves edge strength on finished parts\u003c\/li\u003e\n\u003cli\u003eTiCN coating provides enhanced hardness and heat resistance compared to uncoated carbide\u003c\/li\u003e\n\u003cli\u003e4-flute, right-hand spiral design with centercutting capability for plunge and slot entry\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate for improved toughness and edge retention\u003c\/li\u003e\n\u003cli\u003eStub-length (5\/8-inch length of cut) construction maximizes rigidity and minimizes deflection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit tooling option for standard 3\/8-inch collets, shrink-fit holders, or end mill holders used in CNC and manual milling applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician familiar with end mill holder torque and runout requirements. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify collet or holder bore size matches the 3\/8-inch shank diameter before clamping. Inspect the tool shank and cutting edges for damage before each use, and confirm runout is within acceptable limits at the spindle before beginning a cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 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\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\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\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eMaterial\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\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 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\u003eWeight\u003c\/strong\u003e: 0.11 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: 12182881\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51747421454642,"sku":"12182881","price":72.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/567610c7b1520ff7048220d0cbf5845a.jpg?v=1788879837","url":"https:\/\/voomisupply.com\/products\/accupro-12182881-corner-radius-end-mill-3-8-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}