{"product_id":"scientific-cutting-tools-tm400-20ha-thread-mill-1-2-20-unf","title":"Scientific Cutting Tools TM400-20HA Thread Mill 1\/2-20 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TM400-20HA is a solid carbide helical flute thread mill designed to cut 1\/2-20 UNF threads in both internal and external configurations. Built from submicron-grade carbide and finished with an AlTiN+ coating, it delivers extended tool life in ferrous and hardened materials. The 4-flute, right-hand helical geometry produces clean thread forms in a single helical interpolation pass. With a 0.4-inch cutting diameter and 1.12-inch length of cut, this tool is suited for CNC machining centers running rigid helical interpolation cycles. Installation is performed by qualified CNC machinists following standard G-code thread milling routines.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is intended for use on CNC machining centers capable of helical interpolation. It handles both internal and external 1\/2-20 UNF thread forms, making it versatile across a range of part geometries. Typical applications include threaded hole production and external thread milling in aerospace, automotive, and general precision machining environments where thread quality and tool longevity are critical. The AlTiN+ coating supports dry or minimum-quantity lubrication machining strategies in harder workpiece materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCuts internal and external 1\/2-20 UNF threads in a single helical interpolation pass\u003c\/li\u003e\n  \u003cli\u003eSubmicron-grade solid carbide construction for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003eAlTiN+ coating extends tool life in ferrous, stainless, and hardened materials\u003c\/li\u003e\n  \u003cli\u003e4-flute right-hand helical design for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003e0.4-inch cutting diameter with 1.12-inch length of cut covers common thread depths\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement simplifies toolholder selection\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 with a 1\/2-inch straight shank toolholder. Cuts 1\/2-20 UNF thread forms to standard thread specifications in both internal bores and external diameters.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed and operated by qualified CNC machinists. Secure the 1\/2-inch shank in a collet chuck or end mill holder with adequate clamping force before running any program. Verify the helical interpolation cycle parameters, including pitch and compensation offset, match the 1\/2-20 UNF thread specification before cutting. Do not use this tool in manual milling operations or hand-held equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 20 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal and External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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: 0.4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5 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: Submicron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN+\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: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TM400-20HA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":51971125543218,"sku":"TM400-20HA","price":295.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6ac5aa521928b0960ca7f3227cb1dc8c.jpg?v=1789953324","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tm400-20ha-thread-mill-1-2-20-unf","provider":"Voomi Supply","version":"1.0","type":"link"}