{"product_id":"scientific-cutting-tools-tmlr4-5mma-thread-mill-m4x0-5","title":"Scientific Cutting Tools TMLR4-.5MMA Thread Mill M4x0.5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TMLR4-.5MMA is a helical flute thread mill designed for cutting internal M4x0.5 metric fine threads in a single helical pass. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, it handles hard and abrasive workpiece materials where high-speed steel tooling would wear prematurely. The three-flute, right-hand helical design produces clean thread forms while managing chip evacuation in blind and through-hole applications. With a 0.12-inch cutting diameter and a 2.5-inch overall length, this is a long-reach tool suited for deep or obstructed thread locations that standard-length mills cannot access. Machinists and CNC programmers in precision machining, aerospace, and mold-and-die shops are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is applied in CNC machining centers where M4x0.5 internal threads are required in materials such as hardened steels, stainless, titanium, and cast iron. The long-reach geometry allows threading in recessed bores or pockets where a tap would risk breakage or cannot reach. The 0.25-inch shank diameter fits standard ER collet chucks and tool holders commonly found in vertical and horizontal machining centers. Because one tool cuts the full thread form via interpolation, a single TMLR4-.5MMA can produce multiple thread sizes close to M4x0.5 with appropriate CNC offset adjustments, reducing tool inventory requirements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmicron-grade solid carbide substrate for rigidity and extended tool life in hard materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN+ coating provides high-temperature oxidation resistance and reduced friction at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eThree helical flutes in a right-hand direction for efficient chip evacuation during interpolation\u003c\/li\u003e\n  \u003cli\u003eLong-reach design with 2.5-inch overall length and 0.12-inch cutting diameter accesses deep or recessed thread locations\u003c\/li\u003e\n  \u003cli\u003eCuts M4x0.5 metric fine internal threads with a minimum nominal bore diameter of 0.1575 inches (4.00 mm)\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement; external flood or mist cooling is applicable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNC machining centers with helical interpolation capability. Accepts a 0.25-inch shank for use with standard ER or end-mill-style collet holders. Intended for M4x0.5 metric fine internal thread milling in workpieces with a minimum nominal bore diameter of 4.00 mm (0.1575 inches).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or CNC programmer should verify helical interpolation parameters before running the tool. Secure the shank in a balanced, properly torqued collet holder and confirm runout is within acceptable limits before cutting, as excessive runout accelerates edge wear on carbide thread mills. Power down the spindle and follow lockout-tagout procedures before changing or inspecting the tool. Do not use this tool for tapping cycles; it is designed exclusively for CNC helical interpolation thread milling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide (Submicron Grade)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M4x0.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Metric Fine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Mill Type\u003c\/strong\u003e: Long Reach\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\u003eCoating\u003c\/strong\u003e: AlTiN+\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.3 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: 0.1575 inches (4.00 mm)\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  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242117\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: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TMLR4-.5MMA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":51993678872882,"sku":"TMLR4-.5MMA","price":140.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/abe8d85606da0ea9e38be0991bc3ff17_fd10cb9e-e89a-48bd-a09c-7ac2accc13b6.jpg?v=1789991290","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tmlr4-5mma-thread-mill-m4x0-5","provider":"Voomi Supply","version":"1.0","type":"link"}