{"product_id":"accupro-e999921209-square-end-mill-1-2-in-3-flute","title":"Accupro E999921209 Square End Mill 1\/2 in 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO E999921209 is a single-end square end mill designed for milling flat surfaces, shoulders, slots, and pockets in a variety of workpiece materials. Built from powdered metal, it delivers a good balance of toughness and wear resistance suited to general-purpose machining. The 1\/2-inch diameter cutting head features 3 spiral flutes with a 42-degree helix angle, promoting efficient chip evacuation and smooth cutting action. The bright\/uncoated finish keeps surface finish consistent and works well with cutting fluids. This end mill is installed and operated by machinists and CNC programmers in job shop and production environments.\u003c\/p\u003e\u003cp\u003eThis end mill fits standard 1\/2-inch collets and end mill holders on vertical mills, knee mills, and CNC machining centers. With a 2-inch length of cut and 4-inch overall length, it handles moderate-depth passes in ferrous and non-ferrous materials. The right-hand cut and right-hand flute direction are compatible with conventional spindle configurations. Centercutting capability allows plunge entry into the workpiece, supporting ramping and helical interpolation strategies. No extended reach geometry is present, keeping the setup rigid for general milling work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2-inch mill diameter with plus 0.0015 \/ minus 0.0000 inch tolerance for consistent sizing\u003c\/li\u003e\n\u003cli\u003e3 spiral flutes with a 42-degree helix angle for effective chip evacuation\u003c\/li\u003e\n\u003cli\u003e2-inch length of cut supports moderate-depth slotting and profiling passes\u003c\/li\u003e\n\u003cli\u003eCentercutting design enables plunge entry, ramping, and helical interpolation\u003c\/li\u003e\n\u003cli\u003ePowdered metal construction balances toughness and wear resistance\u003c\/li\u003e\n\u003cli\u003eBright\/uncoated finish compatible with a wide range of cutting fluids and dry machining\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard 1\/2-inch collet chucks and end mill holders on vertical mills and CNC machining centers with right-hand spindle rotation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following the machine tool manufacturer guidelines. Ensure the spindle is fully powered down and locked before inserting or removing the end mill from the holder. Secure the shank to the full recommended engagement depth in the collet or holder to minimize runout and prevent pullout under load. Inspect the cutting edges for chips or damage before each use and replace if edge condition is compromised.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 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: 42 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\u003eEnd Mill Material\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle\/Double End\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: plus 0.0015 \/ minus 0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: minus 0.0001 \/ minus 0.0005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: E999921209\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51727333359922,"sku":"E999921209","price":90.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6a60bbbb0782aa73d7f46650ecfd6559.jpg?v=1788676432","url":"https:\/\/voomisupply.com\/products\/accupro-e999921209-square-end-mill-1-2-in-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}