{"product_id":"accupro-2500397-square-end-mill-1-4in-3-flute-carbide","title":"Accupro 2500397 Square End Mill 1\/4in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 2500397 is a solid carbide square end mill designed for precision milling operations in metal, composite, and hard material applications. With a 1\/4 inch diameter, a 3\/8 inch length of cut, and a 60-degree helix angle, this tool delivers aggressive chip evacuation and reduced cutting forces at the spindle. The TiCN coating adds surface hardness and lubricity, extending tool life in ferrous and non-ferrous materials. The micrograin carbide substrate provides rigidity and edge retention in demanding cuts. Machinists and tool-and-die professionals use this end mill in CNC machining centers and manual mills where tight tolerances and fine surface finishes are required.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for stub-length slotting, profiling, and peripheral milling in both production and job-shop environments. The 3-flute geometry balances chip load and feed rate, making it effective for aluminum, steel, and stainless applications where a 2-flute would lack rigidity and a 4-flute would pack chips. The 1\/4 inch shank diameter fits standard collets and end mill holders commonly found in vertical machining centers and CNC routers. The single-end configuration is standard for tool-change setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for rigidity and edge retention in hard materials\u003c\/li\u003e\n  \u003cli\u003eTiCN coating increases surface hardness and reduces friction during cutting\u003c\/li\u003e\n  \u003cli\u003e60-degree helix angle promotes aggressive chip evacuation and smooth cutting action\u003c\/li\u003e\n  \u003cli\u003e3-flute geometry balances chip load capacity with feed rate performance\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute direction for standard CNC spindle compatibility\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting capable, allowing plunge entry into workpieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a stub-length replacement end mill for use in standard 1\/4 inch collets and end mill holders on CNC machining centers, vertical mills, and CNC routers requiring a 3-flute solid carbide tool.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator with the spindle fully stopped and the machine in an e-stop or lockout state. Seat the shank fully into the collet or end mill holder to the recommended engagement depth before torquing the retention nut. Verify runout with a dial indicator after installation, as excessive runout will accelerate tool wear and degrade surface finish. Follow the tooling manufacturer and machine builder guidelines for spindle speed and feed rate when programming cuts with this geometry and coating.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/8 inch (0.375 inches)\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: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\/Finish\u003c\/strong\u003e: TiCN\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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.002 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\u003eVariable Helix\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 2500397\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51727713796402,"sku":"2500397","price":54.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7cf9d4d55b1943ec3e19fdf0a394d5d0.jpg?v=1788681167","url":"https:\/\/voomisupply.com\/products\/accupro-2500397-square-end-mill-1-4in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}