{"product_id":"carmex-mt0250c0716un-thread-mill-3-8-16-internal-solid-carbide","title":"Carmex MT0250C0716UN Thread Mill 3\/8-16 Internal Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CARMEX MT0250C0716UN is a solid carbide helical flute thread mill designed for cutting internal 3\/8-16 UNC threads in a single helical pass. With a cutting diameter of 0.236 inches, a 1\/4-inch shank, and a TiAlN coating, this tool handles the thermal and abrasive demands of thread milling in steel, stainless, and hardened materials. The three right-hand flutes provide smooth chip evacuation and stable cutting action. At 2.5 inches overall length with a 0.66-inch length of cut, it fits standard CNC machining center toolholders used in production and job-shop environments. Machinists and CNC programmers select this tool for precise internal thread generation without the breakage risk associated with tapping.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is suited for CNC machining centers running 3\/8-16 UNC internal thread programs in ferrous and non-ferrous workpieces. The helical interpolation approach makes it effective in blind holes, through holes, and thin-walled parts where tap breakage or extraction would be costly. The 1.8-inch shank length provides adequate reach for most standard fixture setups. It is commonly used in aerospace, general machining, and mold-and-die work where thread quality and tool reliability are priorities. A single tool covers the full thread depth in one interpolated arc pass, reducing cycle time compared to multiple-pass methods.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction in material grade MT7 for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating extends tool life in high-temperature cutting conditions\u003c\/li\u003e\n  \u003cli\u003eThree right-hand helical flutes for efficient chip removal in internal threading\u003c\/li\u003e\n  \u003cli\u003e0.236-inch cutting diameter sized for 3\/8-16 UNC internal thread profile\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design  -  uses flood or mist coolant applied externally\u003c\/li\u003e\n  \u003cli\u003eSingle-tool solution for full thread depth via CNC helical interpolation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on CNC machining centers capable of helical interpolation, producing 3\/8-16 UNC internal threads. Requires a 1\/4-inch straight-shank toolholder such as a collet chuck or end mill holder.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by a qualified CNC machinist or tooling specialist. Secure the 1\/4-inch shank in a properly sized collet or end mill holder and verify runout before cutting. Program the machine for helical interpolation using the correct thread pitch and cutting diameter offset per the tool manufacturer guidelines. Do not use this tool in manual or non-CNC drilling equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 16 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.236 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.66 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.375 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\u003eMaterial Grade\u003c\/strong\u003e: MT7\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: 0.05 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: CARMEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MT0250C0716UN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CARMEX","offers":[{"title":"Default Title","offer_id":52109519913266,"sku":"MT0250C0716UN","price":379.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f0f589c882ce38c30e69d2495583388b.jpg?v=1790075670","url":"https:\/\/voomisupply.com\/products\/carmex-mt0250c0716un-thread-mill-3-8-16-internal-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}