{"product_id":"accupro-315149-square-end-mill-1-4-in-3-flute-carbide-zrn","title":"Accupro 315149 Square End Mill 1\/4 in 3 Flute Carbide Zrn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 315149 is a solid carbide square end mill designed for precision metal removal in milling applications. It features a 1\/4-inch diameter with a 1-1\/4-inch length of cut and a 3-inch overall length, giving it the extended reach needed for deeper pocket and slot work. The three-flute geometry combined with a 37-degree right-hand helix promotes efficient chip evacuation and smooth cutting action. The micrograin carbide substrate and ZrN (zirconium nitride) coating provide hardness and heat resistance suited to ferrous and non-ferrous materials. Installation and setup are handled by machinists and CNC operators working with vertical mills, machining centers, and manual knee mills.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for slot milling, peripheral milling, and pocket work in applications requiring a long-reach 1\/4-inch tool. The 1\/4-inch shank diameter fits standard ER collet chucks, end mill holders, and similar toolholding systems. The long-length classification makes it appropriate for deep-cavity work where a standard-length tool cannot reach. Center-cutting capability allows direct plunge entry without a pre-drilled pilot hole. Right-hand cutting and right-hand flute direction are standard for conventional CNC and manual milling setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide construction for hardness and wear resistance\u003c\/li\u003e\n\u003cli\u003eZrN coating extends tool life and reduces built-up edge on a range of work materials\u003c\/li\u003e\n\u003cli\u003e37-degree helix angle promotes aggressive chip flow and reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eThree right-hand spiral flutes for efficient chip evacuation in slotting and pocketing\u003c\/li\u003e\n\u003cli\u003eCenter-cutting design allows direct plunge milling without a pilot hole\u003c\/li\u003e\n\u003cli\u003eLong-length classification with 1-1\/4 inch LOC for deep-reach applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for 1\/4-inch shank square end mills in standard ER collet chucks, shrink-fit holders, and end mill holders used on CNC machining centers and manual mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or CNC setup technician. Power down and lock out the spindle before changing tooling. Verify collet or holder bore size matches the 1\/4-inch shank diameter and inspect the taper and collet for wear or contamination before seating the tool. Follow the machine tool manufacturer torque specifications for drawbar and collet nut tightening.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 1-1\/4 inches (1.25 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: 1\/4 inch (0.25 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: 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\/Finish\u003c\/strong\u003e: ZrN (Zirconium Nitride)\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\u003eFlute Type\u003c\/strong\u003e: Spiral\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: Long\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\u003eWeight\u003c\/strong\u003e: 0.08 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: 315149\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51735551607090,"sku":"315149","price":99.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/955af4d30e8927aa9fc6bb06733d84ab.jpg?v=1788772987","url":"https:\/\/voomisupply.com\/products\/accupro-315149-square-end-mill-1-4-in-3-flute-carbide-zrn","provider":"Voomi Supply","version":"1.0","type":"link"}