{"product_id":"carmex-mt0312c0913un-thread-mill-1-2-13-internal-solid-carbide","title":"Carmex MT0312C0913UN Thread Mill 1\/2-13 Internal Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CARMEX MT0312C0913UN is a solid carbide helical flute thread mill designed for cutting internal 1\/2-13 UNC threads in CNC machining operations. It features three right-hand flutes with a TiAlN coating that extends tool life in ferrous and hardened materials. The cutting diameter is 0.313 inches with a length of cut of 0.88 inches and an overall length of 2.5 inches. The 5\/16-inch (0.313-inch) shank diameter and 1.6-inch shank length provide rigid setup in standard ER or hydraulic toolholders. This tool is installed and operated by machinists and CNC programmers in job shop, production, and toolroom environments.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is suited for internal threading operations on machining centers where a single tool must produce 1\/2-13 UNC threads with high dimensional accuracy. The helical interpolation method allows one tool to cut a range of thread depths, making it a practical choice for short-run and prototype work as well as production runs. It performs in materials compatible with the MT7 carbide grade and TiAlN coating, including steels, stainless steels, and hardened workpieces. No coolant-through capability is present, so flood or mist coolant applied externally at the spindle is the standard approach.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction in MT7 grade for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating extends tool life in ferrous and hardened materials\u003c\/li\u003e\n  \u003cli\u003eThree right-hand helical flutes for efficient chip evacuation on internal threads\u003c\/li\u003e\n  \u003cli\u003eCuts 1\/2-13 UNC internal threads at 13 TPI with 0.313-inch cutting diameter\u003c\/li\u003e\n  \u003cli\u003e0.88-inch length of cut accommodates standard thread engagement depths\u003c\/li\u003e\n  \u003cli\u003e2.5-inch overall length fits common CNC toolholder setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style thread mill for internal 1\/2-13 UNC threading operations on CNC machining centers accepting a 5\/16-inch shank diameter toolholder.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread mills are installed and programmed by qualified machinists or CNC programmers. Verify spindle speed, feed rate, and helical interpolation arc radius in the CAM program or G-code before cutting. Secure the shank in a balanced toolholder to the manufacturer-specified clamping method and confirm runout with a dial indicator before the first pass. No coolant-through passages are present on this tool, so external coolant delivery must be positioned to reach the cutting zone.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\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 (TPI)\u003c\/strong\u003e: 13\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\u003eCutting Diameter\u003c\/strong\u003e: 0.313 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.88 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\u003eShank Length\u003c\/strong\u003e: 1.6 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\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\/Finish\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: 0.08 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: MT0312C0913UN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CARMEX","offers":[{"title":"Default Title","offer_id":51974069682482,"sku":"MT0312C0913UN","price":402.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9b8cce4ac425b5415e16cd3b28e0000.jpg?v=1789975701","url":"https:\/\/voomisupply.com\/products\/carmex-mt0312c0913un-thread-mill-1-2-13-internal-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}