{"product_id":"scientific-cutting-tools-sptm080-thread-mill-40-64-tpi","title":"Scientific Cutting Tools SPTM080 Thread Mill 40-64 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS SPTM080 is a single profile thread mill designed to cut both internal and external threads in the 40 to 64 TPI range, covering thread sizes from 4-40 to 4-64. Machined from submicron-grade solid carbide, this tool offers the rigidity and edge retention required for precision threading in hard or abrasive materials. With a 0.08 inch cutting diameter, a 0.045 inch neck diameter, and a 3-flute geometry, the SPTM080 is suited for tight-tolerance threading work on small fastener features in production and tool room environments. The bright, uncoated finish keeps the tool ready to run as delivered.\u003c\/p\u003e\u003cp\u003eThis thread mill is intended for use in CNC machining centers and multi-axis mills where a single tool must handle both internal and external thread profiles across a range of TPI without a tool change. It is commonly applied in aerospace, medical device, and precision instrument manufacturing where small-diameter threads demand consistent, chatter-free cutting. The 2 inch overall length provides clearance for most standard setups, and the 3\/16 inch shank fits standard ER collet chucks and shrink-fit holders in that bore size.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCovers 4-40 to 4-64 thread sizes in a single tool, eliminating the need for multiple thread mills across that TPI range\u003c\/li\u003e\n\u003cli\u003eCuts both internal and external thread profiles, reducing tool inventory\u003c\/li\u003e\n\u003cli\u003eSubmicron-grade solid carbide construction for high edge stability in ferrous and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003e3-flute design balances chip evacuation with cutting efficiency in small-diameter threading applications\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for a wide range of base materials without coating compatibility concerns\u003c\/li\u003e\n\u003cli\u003e0.045 inch neck diameter provides clearance relief for threading operations in confined bore entries\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style single profile thread mill for CNC machining applications requiring 40 to 64 TPI internal and external threads in the 4-40 to 4-64 thread size range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation of this tool should be performed by a qualified CNC machinist or tooling specialist. Secure the 3\/16 inch shank in a properly sized collet chuck or shrink-fit holder, verifying runout before cutting. Machine spindle and axis motion must be programmed with helical interpolation specific to the target thread pitch and diameter. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and thread depth.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size Range\u003c\/strong\u003e: 4-40 to 4-64\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch (TPI)\u003c\/strong\u003e: 40 to 64\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal and External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.08 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.045 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.19 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.19 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1875 inches (3\/16)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Submicron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 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: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SPTM080\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":51998180016434,"sku":"SPTM080","price":72.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/845338add57aa4402b8acbc919c4889e.jpg?v=1789994703","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-sptm080-thread-mill-40-64-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}