{"product_id":"osg-1662500617-thread-mill-3-8-16-unc-4-flute-solid-carbide","title":"Osg 1662500617 Thread Mill 3\/8-16 Unc 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1662500617 is a solid carbide helical flute thread mill designed for cutting 3\/8-16 UNC threads in both internal and external applications. With a 0.264-inch cutting diameter, a 0.313-inch shank diameter, and a 0.875-inch length of cut, this tool handles full-thread-profile milling in a single helical pass. The 4-flute, right-hand configuration paired with an EgiAs coating provides wear resistance and helps maintain cutting edge integrity in ferrous and non-ferrous materials. Machinists and tool-and-die professionals use this tool in CNC machining centers where thread milling is preferred over tapping for precision, tool-life, or accessibility reasons.\u003c\/p\u003e\u003cp\u003eThis thread mill is suited for job shops, production machining, and maintenance environments where 3\/8-16 UNC threaded features are common. Its solid carbide construction makes it appropriate for hardened materials and applications where tap breakage is a concern. The helical flute geometry supports chip evacuation during the milling cycle. It is sold and packaged as a single unit.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCuts 3\/8-16 UNC threads — internal and external — in a single helical interpolation pass\u003c\/li\u003e\n\u003cli\u003e4 right-hand flutes for balanced cutting and improved surface finish\u003c\/li\u003e\n\u003cli\u003eEgiAs coating for enhanced wear resistance and tool life\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and performance in harder workpiece materials\u003c\/li\u003e\n\u003cli\u003e0.313-inch shank diameter for standard collet and end mill holder compatibility\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement — external coolant application is standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CNC machining centers capable of helical interpolation; accepts a 0.313-inch shank in a standard collet or end mill holder and is intended for producing 3\/8-16 UNC thread profiles.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread milling requires a CNC control capable of helical interpolation — confirm machine compatibility before use. Secure the shank in a precision collet or end mill holder to minimize runout, which directly affects thread quality and tool life. Follow the tool manufacturer recommended speeds, feeds, and interpolation radius for the 3\/8-16 UNC profile. Inspect the cutting edges before use; carbide tools should not be run if chipping is present.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Internal and External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.264 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.313 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: EgiAs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 16625\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.65 inches L x 0.45 inches W x 0.5 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.118 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 1662500617\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730346443058,"sku":"1662500617","price":272.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0954cad9cc2778f8965eed34539eda90_c64cefeb-35b3-4da6-b630-9fa6ba4189ba.jpg?v=1788715752","url":"https:\/\/voomisupply.com\/products\/osg-1662500617-thread-mill-3-8-16-unc-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}