{"product_id":"harvey-tool-900816-square-end-mill-0-25in-3-flute-carbide","title":"Harvey Tool 900816 Square End Mill 0.25in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL 900816 is a solid carbide square end mill designed for precision milling in metal, composites, and engineering plastics. The cutter measures 0.25 inches in diameter with a 2-inch length of cut, a 0.25-inch shank diameter, and a 4-inch overall length. Three flutes with a 40-degree helix angle and an upcut geometry promote chip evacuation and reduce heat buildup during aggressive material removal. The bright, uncoated finish makes this tool well-suited for applications where coating-related thermal concerns or material adhesion could be a factor. Machinists and CNC operators working in job shops, tool rooms, and production environments are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThis end mill is configured as a single-end, right-hand cut tool with right-hand fluting and is intended for general-purpose slotting, profiling, and pocketing operations. The 40-degree helix provides a good balance between cutting efficiency and tool rigidity for a 0.25-inch diameter cutter. It is commonly used on CNC vertical machining centers and manual knee mills where a small-diameter, long-reach carbide end mill is required. The 2-inch length of cut allows access to deeper features without requiring a longer reach extension or specialty toolholder.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.25-inch cutter diameter with 2-inch length of cut for deep-feature access\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003e3-flute geometry supports efficient chip evacuation in slotting and pocketing\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle balances cutting forces and surface finish quality\u003c\/li\u003e\n\u003cli\u003eUpcut right-hand flute design for standard CNC milling operations\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for non-ferrous metals and plastics where coating is not preferred\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 0.25-inch shank solid carbide square end mill compatible with ER collets, end mill holders, and other toolholding systems accepting a 0.25-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the control is in an e-stop or tool-change state before installing or removing end mills. Verify collet or holder bore size matches the 0.25-inch shank before tightening. Follow the toolholder manufacturer torque guidelines and confirm runout with a dial indicator before beginning a production cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutter Diameter\u003c\/strong\u003e: 0.25 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\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\u003eNumber of Flutes\u003c\/strong\u003e: 3\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: Upcut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: HARVEY TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 900816\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51730428854578,"sku":"900816","price":145.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6d294ef1260b8ab4f6b7129e154464a9_baa82afe-5713-45f9-a990-bd9eb41ec62a.jpg?v=1788717293","url":"https:\/\/voomisupply.com\/products\/harvey-tool-900816-square-end-mill-0-25in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}