{"product_id":"accupro-12181783-square-end-mill-1-4-in-2-flute-carbide-ticn","title":"Accupro 12181783 Square End Mill 1\/4 in 2 Flute Carbide Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12181783 is a solid carbide square end mill designed for precision material removal in machining operations. Built from micrograin carbide stock, it carries a TiCN (titanium carbonitride) coating that extends tool life in abrasive cutting environments. The cutting diameter measures 0.25 inches with a 40-degree helix angle and spiral flute geometry that promotes efficient chip evacuation. At 3 inches overall length with a 1.25-inch length of cut, this tool falls in the extra-long category, making it suitable for reaching into deeper pockets and slots. Licensed machinists and CNC operators are the typical end users for this class of tooling.\u003c\/p\u003e\u003cp\u003eThis end mill fits standard milling, profiling, slotting, and contouring applications on CNC machining centers and manual mills. The centercutting design allows direct plunge entry into workpiece material without a pre-drilled pilot hole. Its 0.25-inch shank diameter seats directly into ER collets, end mill holders, or similar 1\/4-inch toolholding systems commonly found in light-to-medium-duty machining setups. Right-hand cut and right-hand flute orientation match conventional spindle rotation on standard machine tools.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003eTiCN coating for improved surface hardness and reduced tool wear in abrasive materials\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle with spiral flute for aggressive chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge entry without pre-drilling\u003c\/li\u003e\n\u003cli\u003eExtra-long classification with 1.25-inch LOC for deep pocket and slot work\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute — compatible with standard CNC spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in 1\/4-inch end mill holders, ER collets, and similar toolholding systems on CNC machining centers and manual knee mills requiring a standard 0.25-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing end mills from the holder. Verify collet or holder runout is within acceptable tolerance before cutting to protect both the tool and the workpiece. Torque toolholders per the machine tool manufacturer specifications — do not overtighten collet nuts, as this can damage the shank.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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: Extra 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\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: 12181783\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51731863699762,"sku":"12181783","price":66.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/58f73fc60904dd87a29b35eb99ce58fc.jpg?v=1788735740","url":"https:\/\/voomisupply.com\/products\/accupro-12181783-square-end-mill-1-4-in-2-flute-carbide-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}