{"product_id":"accupro-315374-corner-radius-end-mill-3-16-in-zrn-carbide","title":"Accupro 315374 Corner Radius End Mill 3\/16 in Zrn Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 315374 is a solid carbide corner radius end mill designed for precision milling in demanding machining environments. It carries a ZrN (zirconium nitride) coating for improved wear resistance and reduced friction at the cutting edge. The mill features a 3\/16 inch diameter, a 5\/16 inch length of cut, and a 3 inch overall length with an extended reach configuration. With a 37-degree helix angle and three flutes in a right-hand spiral, it delivers efficient chip evacuation and consistent surface finish. Centercutting geometry allows direct plunging into workpiece material. Machinists and CNC operators in job shops and production environments rely on this tool for contour milling and finishing passes where corner geometry accuracy is critical.\u003c\/p\u003e\u003cp\u003eThe 315374 is suited for use in CNC machining centers and manual milling machines where a long-reach, small-diameter end mill is required. The extended reach neck diameter of 0.1781 inches and a reach length of 1.375 inches allow access to deep pockets and recessed features that standard-length end mills cannot reach. The corner radius geometry helps reduce stress concentration at the tool-workpiece interface, making it appropriate for finishing operations in ferrous and non-ferrous materials where micrograin carbide and ZrN coating provide the necessary hardness and lubricity.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide construction for rigidity and edge retention\u003c\/li\u003e\n\u003cli\u003eZrN coating provides wear resistance and low friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003eExtended reach design with 1.375 inch reach length and 0.1781 inch neck diameter for deep-pocket access\u003c\/li\u003e\n\u003cli\u003eThree-flute, right-hand spiral geometry promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting capability allows direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.010 inch reduces stress at the tool tip and improves corner finish quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use end mill for CNC machining centers and milling machines accepting a 3\/16 inch shank diameter collet or end mill holder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and machine is in a safe, locked-out state before changing tooling. Seat the shank fully into a properly sized collet or end mill holder and torque the retention system according to the toolholder manufacturer specifications. Inspect the cutting edges and coating condition before each use; do not run a chipped or damaged carbide end mill.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/16 inch (0.1875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/16 inch (0.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.1781 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 1.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.010 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 37 degrees\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: ZrN (Zirconium Nitride)\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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\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\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.003000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: +0.00200 to -0.00200 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\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: 315374\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51749365449010,"sku":"315374","price":87.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4a0cc7197c9ff17bba28e503a1f413c2.jpg?v=1788905072","url":"https:\/\/voomisupply.com\/products\/accupro-315374-corner-radius-end-mill-3-16-in-zrn-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}