{"product_id":"accupro-936-25018-thread-mill-1-4-3-8-npt-4-flute-solid-carbide","title":"Accupro 936-25018 Thread Mill 1\/4 3\/8 Npt 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 936-25018 is a solid carbide helical flute thread mill designed for cutting internal NPT threads in sizes 1\/4 and 3\/8. It runs 4 flutes with a micrograin carbide body and a TiAlN coating, giving it strong wear resistance in ferrous and abrasive materials. The cutting diameter measures 0.305 inches with a 0.625-inch length of cut, and the shank diameter is 5\/16 inches. At 18 teeth per inch, it is suited for producing tapered pipe threads in a CNC milling operation. This tool is used by machinists and tooling professionals working in production or job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is applied wherever internal NPT threads in 1\/4 or 3\/8 pipe sizes must be milled rather than tapped. Helical flute thread mills are commonly selected when thread quality, tool life, or interrupted-cut conditions make single-point tapping impractical. The TiAlN coating supports use in steel, stainless steel, cast iron, and similar materials. CNC machining centers with rigid spindles and appropriate thread-milling G-code cycles are the standard installation platform for this tool.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for rigidity and extended tool life\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating improves heat resistance and reduces tool wear in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e4-flute helical design supports efficient chip evacuation during thread milling\u003c\/li\u003e\n  \u003cli\u003eCuts internal NPT threads in both 1\/4 and 3\/8 pipe sizes with a single tool\u003c\/li\u003e\n  \u003cli\u003e18 TPI matches NPT thread form requirements for tapered pipe thread applications\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design  -  suitable for flood or mist coolant delivery from the outside\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNC machining centers capable of helical interpolation for internal NPT thread milling in 1\/4 and 3\/8 pipe thread sizes.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed by machinists in CNC milling setups using a collet or end mill holder sized for a 5\/16-inch shank. Verify that the machine control supports helical interpolation and that the correct thread-milling canned cycle is programmed for NPT taper geometry before cutting. Inspect the tool for edge condition before use and replace at the first sign of coating wear or chipping to avoid thread-form errors. No hand-tool or manual-tap installation method applies to this product.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Sizes\u003c\/strong\u003e: 1\/4 and 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 18 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.305 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.250 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\u003eMaterial\u003c\/strong\u003e: Solid Carbide, Micrograin Grade\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 936-25018\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51741820682546,"sku":"936-25018","price":296.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8a4af117e5521e7df66660dba9f7919b.jpg?v=1788833656","url":"https:\/\/voomisupply.com\/products\/accupro-936-25018-thread-mill-1-4-3-8-npt-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}