{"product_id":"osg-8549730-square-end-mill-3mm-4-flute-solid-carbide","title":"Osg 8549730 Square End Mill 3mm 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8549730 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. Built with four flutes and a 43-degree helix angle, it delivers efficient chip evacuation and smooth cutting performance in a wide range of materials. The 3 mm cutting diameter and 7.5 mm length of cut make it well-suited for tight-tolerance slot milling, profiling, and finishing passes. A DUROREY coating enhances surface hardness and wear resistance, extending tool life in demanding cutting conditions. This end mill is center-cutting and runs right-hand with right-hand flute direction, making it compatible with standard vertical and horizontal CNC machining centers.\u003c\/p\u003e\u003cp\u003eThis end mill is used in precision machining environments including CNC milling centers, die and mold shops, and production machining cells. Its 3 mm diameter suits small-feature work on ferrous and non-ferrous materials. The 6 mm shank diameter fits standard ER-style collet chucks and shrink-fit toolholders commonly found in CNC setups. The micrograin carbide substrate provides edge stability at higher spindle speeds. It is intended for professional machinists and CNC operators working on close-tolerance components where consistent geometry and coating durability are critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3 mm cutting diameter with 7.5 mm length of cut for small-feature precision milling\u003c\/li\u003e\n\u003cli\u003e4-flute, 43-degree helix design promotes efficient chip evacuation and surface finish\u003c\/li\u003e\n\u003cli\u003eDUROREY coating provides enhanced wear resistance and extended tool life\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate for edge stability at high cutting speeds\u003c\/li\u003e\n\u003cli\u003eCenter-cutting geometry allows plunge entry without pre-drilling\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 6 mm shank diameter for compatibility with standard toolholding systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard CNC milling machines and machining centers accepting a 6 mm shank diameter toolholder such as ER collet chucks or shrink-fit holders.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes must be performed by a qualified machinist with the spindle at a complete stop and machine power isolated per shop safety protocols. Ensure the collet or toolholder bore matches the 6 mm shank diameter and that the tool is secured to the manufacturer-recommended pull-out prevention depth. Verify runout after installation before beginning a production cut. Always refer to the machine tool manufacturer guidelines for recommended speeds, feeds, and depth-of-cut parameters for carbide tooling of this diameter.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3 mm (0.1181 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 7.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 60 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6 mm (0.2362 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 43 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: DUROREY\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\u003eCenter Cutting\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 2.6 x 0.5 x 0.45 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.07 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: 8549730\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51749347819826,"sku":"8549730","price":109.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/46a3254f5acde6e640620cad36430345_de07b808-9c81-4c87-b5ea-4a0d3ea1b1db.jpg?v=1788904787","url":"https:\/\/voomisupply.com\/products\/osg-8549730-square-end-mill-3mm-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}