{"product_id":"osg-4200100211-thread-mill-1-8-27-nptf-3-flute-carbide","title":"Osg 4200100211 Thread Mill 1\/8-27 Nptf 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 4200100211 is a solid carbide helical flute thread mill designed for cutting 1\/8-27 NPTF internal threads in a single helical interpolation pass. With a 0.2860-inch cutting diameter, a 0.409-inch length of cut, and 27 teeth per inch, this tool produces tapered pipe threads to NPTF standards with tight tolerances. The 5\/16-inch shank interfaces with standard milling machine toolholders. Three right-hand flutes provide chip clearance and stable cutting action in a range of workpiece materials. The EXO coating improves wear resistance and heat dissipation, extending tool life in production environments. This tool is intended for use by machinists and tool-and-die professionals on CNC machining centers.\u003c\/p\u003e\u003cp\u003eThis thread mill is suited for machining NPTF pipe thread forms in ferrous and non-ferrous materials where tap breakage is a concern or where a single tool must generate multiple thread sizes by adjusting the CNC interpolation path. At 3.000 inches overall length with a 5\/16-inch shank diameter, it fits standard ER and end mill collet toolholding systems commonly found in vertical and horizontal machining centers. Typical applications include fluid system fittings, hydraulic manifolds, and pneumatic port threading in production and job-shop environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNPTF thread standard for pressure-tight pipe connections without sealant reliance\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and dimensional stability in precision threading\u003c\/li\u003e\n\u003cli\u003eEXO coating for increased surface hardness and reduced tool wear\u003c\/li\u003e\n\u003cli\u003eThree right-hand helical flutes for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eHelical interpolation method allows a single tool to thread multiple nominal diameters\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement — compatible with external flood or mist coolant setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CNC machining centers with standard 5\/16-inch collet or end mill toolholding. Generates 1\/8-27 NPTF thread forms via helical interpolation. Part of OSG Series 42001.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed and operated by machinists on CNC machining centers — it is not a hand tool. Confirm spindle speed, feed rate, and helical pitch are programmed per the thread specification before running. Secure the shank fully in the toolholder to the recommended gauge length and verify runout before cutting. Follow machine lockout procedures when changing tools in the spindle.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/8-27\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPTF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 27\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.2860 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.4090 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: EXO\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: 42001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.109 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: 4200100211\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731384107314,"sku":"4200100211","price":562.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/019fdf8dd8788d158f16904935c62a0c_7a8e9a65-050c-4d2d-9711-5c592d164cca.jpg?v=1788730309","url":"https:\/\/voomisupply.com\/products\/osg-4200100211-thread-mill-1-8-27-nptf-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}