{"product_id":"guhring-9042570063500-square-end-mill-1-4-inch-4-flute","title":"Guhring 9042570063500 Square End Mill 1\/4 Inch 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9042570063500 is a solid carbide square end mill designed for precision metal removal in demanding machining applications. Built to Series 4257 specifications, it features a variable helix spiral flute geometry and a nano-A coating that reduces friction and extends tool life in abrasive materials. The 0.25 inch cutting diameter pairs with a 0.5 inch length of cut and a 2 inch overall length, making it a compact stub-length tool suited for rigid setups where deflection control matters. Licensed machinists and toolroom operators working on CNC mills and machining centers are the primary users of this end mill.\u003c\/p\u003e\n\u003cp\u003eThis end mill is engineered primarily for stainless steel and steel, with secondary capability in cast iron. The stub-length profile, straight-cylindrical shank, and right-hand cut with right-hand flute orientation make it a standard fit for conventional vertical and horizontal milling operations in job shop, production machining, and toolroom environments. Its centercutting capability allows plunge entry directly into the workpiece without a pre-drilled pilot hole, adding flexibility to slotting and pocketing operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and heat resistance in ferrous materials\u003c\/li\u003e\n  \u003cli\u003enano-A coating reduces friction and built-up edge in stainless steel and steel cutting\u003c\/li\u003e\n  \u003cli\u003eVariable helix flute geometry dampens vibration and improves chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows direct plunge entry for slotting and pocketing\u003c\/li\u003e\n  \u003cli\u003eStub-length (0.5 inch LOC, 2 inch OAL) profile maximizes rigidity and minimizes deflection\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand spiral flute — compatible with standard CNC and manual mill spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style solid carbide end mill for use in standard straight-bore tool holders accepting a 0.25 inch straight-cylindrical shank, including collet chucks, shrink-fit holders, and end mill holders on CNC machining centers and manual mills.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC setup technician. The machine spindle must be fully stopped and the tool changer or spindle locked before loading or removing the end mill. Use a calibrated torque wrench and the holder manufacturer's specified torque when tightening collet nuts — do not over-tighten, as this can distort the shank and affect runout. Confirm runout with a dial indicator before cutting, particularly in tight-tolerance or finish-machining applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\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: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: nano-A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: h10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 4257\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GUHRING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9042570063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51730531221810,"sku":"9042570063500","price":58.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1cd879a5393cd97a3821b3e970bc28c0.jpg?v=1788719080","url":"https:\/\/voomisupply.com\/products\/guhring-9042570063500-square-end-mill-1-4-inch-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}