{"product_id":"osg-404-2188-square-end-mill-7-32-in-4-flute-solid-carbide","title":"Osg 404-2188 Square End Mill 7\/32 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 404-2188 is a 4-flute solid carbide square end mill designed for precise milling operations in ferrous and non-ferrous materials. Built from micrograin carbide, it delivers rigidity and wear resistance across a range of machining applications. The 7\/32-inch cutting diameter, 5\/8-inch length of cut, and 1\/4-inch shank diameter make it well-suited for slotting, profiling, and peripheral milling in tight geometries. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces. This tool is part of OSG Series 404 and is sold as a single unit.\u003c\/p\u003e\u003cp\u003eThis end mill fits standard milling operations in job shops, tool rooms, and production environments. The centercutting geometry allows plunge entry directly into the workpiece, expanding its versatility for interpolated bores and pocket milling. With a 2-1\/2-inch overall length, it fits most standard collet chucks and end mill holders with a 1\/4-inch bore. The uncoated finish makes it a straightforward choice for general-purpose applications or where coating re-grinding compatibility is a consideration.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for improved hardness and edge retention\u003c\/li\u003e\n\u003cli\u003e4-flute spiral geometry with 30-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting design supports direct plunge entry into the workpiece\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute configuration for conventional milling setups\u003c\/li\u003e\n\u003cli\u003eRegular-length 5\/8-inch length of cut suitable for shallow-to-moderate depth slots and profiles\u003c\/li\u003e\n\u003cli\u003eUncoated finish for general-purpose use across a wide range of materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and general-purpose square end mill compatible with standard 1\/4-inch bore collet chucks and end mill holders used in vertical milling machines, CNC machining centers, and manual mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the end mill. Secure the shank to the minimum recommended insertion depth per the toolholder manufacturer specification. Verify runout with a dial indicator before beginning the cut to avoid premature edge wear or tool failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 7\/32 inch (0.2188 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 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\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 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\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 404-2188\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51728068280626,"sku":"404-2188","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8dbd7c9980d0933876f40db7978bb004.jpg?v=1788687350","url":"https:\/\/voomisupply.com\/products\/osg-404-2188-square-end-mill-7-32-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}