{"product_id":"harvey-tool-70076-helical-flute-thread-mill-7-16-20-carbide","title":"Harvey Tool 70076 Helical Flute Thread Mill 7\/16-20 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HARVEY TOOL 70076 is a solid carbide helical flute thread mill designed to cut 7\/16-20 threads in both internal and external applications. With 4 flutes and 20 teeth per inch, it delivers consistent thread form and smooth chip evacuation in a single helical pass. The 0.3350-inch cutting diameter and 0.8750-inch length of cut make it well-suited for through and blind-hole threading operations. At 3.5000 inches overall length with a 0.3750-inch shank diameter, it mounts directly into standard collet chucks or milling holders. This tool is run by machinists and CNC operators on vertical and horizontal machining centers where tap breakage risk or thread tolerance control is a concern.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is applied in precision machining environments where 7\/16-20 UNF threads are required in materials suited to carbide cutting geometry. Both internal and external thread configurations are achievable with a single tool, reducing tooling inventory. Typical applications include aerospace, automotive, hydraulic fittings, and general machine shop work requiring fine-pitch unified threads. The bright uncoated finish is appropriate for non-ferrous metals, aluminum alloys, and certain steels where coating is not required or preferred.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCuts 7\/16-20 UNF threads internally and externally with one tool\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003e4-flute helical design promotes smooth chip flow and thread finish\u003c\/li\u003e\n  \u003cli\u003e20 teeth per inch for fine-pitch thread accuracy\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suited for non-ferrous and aluminum applications\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement simplifies setup on standard machines\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 with a 3\/8-inch collet or milling chuck. Suitable for 7\/16-20 UNF internal and external thread milling operations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread mills require a CNC control capable of helical interpolation — confirm machine compatibility before setup. Secure the 0.3750-inch shank in a balanced collet chuck or shrink-fit holder to minimize runout and protect thread accuracy. Follow the tool manufacturer feed and speed recommendations for the workpiece material; do not exceed the rated cutting diameter or depth of cut per pass. Ensure the workpiece is fully fixtured and the spindle is at full operating speed before engaging the cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-20\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\u003eTeeth Per Inch\u003c\/strong\u003e: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.3350 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.8750 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.4375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5000 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: 0.2 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: HARVEY TOOL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 70076\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51734284534066,"sku":"70076","price":365.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3f9cadf986f4419473097841bc37b3ac_e3925f86-08f6-4491-a8f8-08d9d2fc40c6.jpg?v=1788762362","url":"https:\/\/voomisupply.com\/products\/harvey-tool-70076-helical-flute-thread-mill-7-16-20-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}