{"product_id":"accupro-930-50013-thread-mill-1-2-13-internal-4-flute-carbide","title":"Accupro 930-50013 Thread Mill 1\/2-13 Internal 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 930-50013 is a helical flute thread mill designed for cutting internal 1\/2-13 UNC threads in a CNC machining environment. It features a solid micrograin carbide construction and a TiAlN coating that extends tool life under high-heat cutting conditions. The 4-flute geometry and 0.3500-inch cutting diameter allow precise, full-profile thread interpolation in a single helical pass. With a 3\/8-inch shank diameter and 0.8750-inch length of cut, it fits standard ER or hydraulic toolholders used on vertical and horizontal machining centers. Machinists and toolroom operators use this mill where tapping is impractical or where thread quality demands are tight.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is suited for CNC machining centers cutting 1\/2-13 UNC internal threads in ferrous and non-ferrous materials. The TiAlN coating makes it effective in dry or minimal-coolant cutting conditions typical in production and job-shop environments. Coolant-through is not supported, so external coolant or air blast is the recommended approach. It is sold individually and is appropriate for prototype, low-volume, and production threading operations where a single tool covers the full thread depth in one interpolated path.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCuts 1\/2-13 UNC internal threads with 13 teeth per inch profile\u003c\/li\u003e\n  \u003cli\u003eSolid micrograin carbide body for rigidity and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating improves heat resistance and wear life\u003c\/li\u003e\n  \u003cli\u003e4-flute helical design for smooth chip evacuation during thread interpolation\u003c\/li\u003e\n  \u003cli\u003e0.8750-inch length of cut accommodates standard thread depths for this diameter\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch shank diameter fits common ER16, ER20, and hydraulic toolholders\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; suitable for cutting 1\/2-13 UNC internal threads with a minimum nominal diameter of 0.5000 inches.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a rigid, balanced toolholder such as an ER collet chuck or hydraulic holder to minimize runout, which directly affects thread quality. Program a helical interpolation toolpath sized to the thread minor diameter plus the tool cutting radius. Verify spindle speed and feed rate against the tool manufacturer's recommendations for the workpiece material before cutting. Inspect the cutting edges for chipping before each use, as carbide thread mills are sensitive to re-use on hardened or abrasive materials without proper conditioning.\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 Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.3500 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: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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: Micrograin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\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: 0.4 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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 930-50013\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51731396722994,"sku":"930-50013","price":308.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d0ffb4009c74c82aec53414c0e93d38b.jpg?v=1788730481","url":"https:\/\/voomisupply.com\/products\/accupro-930-50013-thread-mill-1-2-13-internal-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}