{"product_id":"harvey-tool-70046-thread-mill-1-4-28-3-flute-solid-carbide","title":"Harvey Tool 70046 Thread Mill 1\/4-28 3 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL 70046 is a solid carbide helical flute thread mill designed for cutting 1\/4-28 UNF threads in both internal and external applications. With 3 flutes and a 28 TPI configuration, it delivers consistent thread geometry on machining centers using standard helical interpolation routines. The cutting diameter is 0.180 inches and the length of cut is 0.500 inches, making it well suited for shallow-to-moderate depth thread milling operations. The bright, uncoated finish provides good performance across a range of workpiece materials without the heat buildup associated with some coated tooling. This tool is intended for use by machinists and tooling engineers running CNC milling equipment.\u003c\/p\u003e\u003cp\u003eThis thread mill is applicable to precision machining environments where a single tool must handle both internal and external 1\/4-28 thread profiles. Typical applications include production milling of threaded features in aluminum, steel, stainless, and non-ferrous alloys where thread milling is preferred over tapping due to part fragility, blind hole constraints, or the need for thread size adjustability through cutter path offset. The minimum nominal diameter supported is 0.250 inches.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCuts 1\/4-28 UNF threads in both internal and external configurations with a single tool\u003c\/li\u003e\n\u003cli\u003e3-flute solid carbide construction for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003e0.180 inch cutting diameter with 0.500 inch length of cut\u003c\/li\u003e\n\u003cli\u003e28 teeth per inch for accurate UNF thread form\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for a broad range of materials\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement — compatible with flood or mist coolant delivery\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CNC milling machines accepting a 3\/16 inch (0.1875 inch) shank diameter and programmed for helical interpolation to produce 1\/4-28 UNF thread profiles.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread mills of this type are installed by machinists in CNC machining centers using an appropriate collet or end mill holder sized for a 0.1875 inch shank. The spindle and all axes must be at a full stop before tool changes are made. Program the tool path using helical interpolation — standard G02 or G03 arc moves with a Z-axis feed component — per the machine control documentation. Verify runout at the tool holder before cutting, as excessive runout degrades thread form and accelerates tool wear.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal and External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 28 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.1800 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\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: 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242117\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HARVEY TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 70046\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51730125553970,"sku":"70046","price":223.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3f9cadf986f4419473097841bc37b3ac.jpg?v=1788712151","url":"https:\/\/voomisupply.com\/products\/harvey-tool-70046-thread-mill-1-4-28-3-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}