{"product_id":"osg-1231602-spiral-point-tap-3-8-16-unc-hss","title":"Osg 1231602 Spiral Point Tap 3\/8-16 Unc Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1231602 is a spiral point tap designed for threading 3\/8-16 UNC holes in production and maintenance machining environments. It features a plug chamfer, three flutes, and a right-hand thread direction with an H3 thread limit and 3B class of fit. The tap is manufactured from high-speed steel and finished with an elektraLUBE coating, which reduces friction and heat buildup during cutting. The threaded length is 1.25 inches, and the tap carries a Series 105 designation. It is suited for use with standard tapping heads, CNC machining centers, and hand tapping equipment where UNC threads are required.\u003c\/p\u003e\u003cp\u003eThe OSG 1231602 is intended for through-hole and blind-hole tapping operations across a broad range of workpiece materials. Its material application range includes aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel. The plug chamfer provides a gradual lead-in suitable for both through holes and deeper blind holes where chip evacuation is manageable. This tap is a common choice in job shops, manufacturing facilities, and maintenance operations requiring consistent 3\/8-16 UNC threads.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/8-16 UNC thread form with right-hand cutting direction\u003c\/li\u003e\n\u003cli\u003eH3 thread limit and 3B class of fit for standard tolerance threading\u003c\/li\u003e\n\u003cli\u003eThree-flute spiral point geometry pushes chips forward ahead of the tap\u003c\/li\u003e\n\u003cli\u003ePlug chamfer for versatile use in through holes and moderate-depth blind holes\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability across a wide material range\u003c\/li\u003e\n\u003cli\u003eelektraLUBE coating reduces friction and extends tool life in dry or minimal-lubrication applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with tapping operations in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel workpieces requiring 3\/8-16 UNC internal threads.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed by a machinist or qualified tradesperson using a properly sized tap holder or tapping head rated for the machine spindle in use. Ensure the workpiece is securely fixtured and the tap is aligned on-axis with the drilled pilot hole before engagement. Disconnect power or place the machine in a safe state before manually changing tooling. Follow applicable shop safety procedures and manufacturer feed rate recommendations for the workpiece material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: elektraLUBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.055 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1231602\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51734263005490,"sku":"1231602","price":33.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/13791a926b7467ac1cc0fae9fed59597.jpg?v=1788761742","url":"https:\/\/voomisupply.com\/products\/osg-1231602-spiral-point-tap-3-8-16-unc-hss","provider":"Voomi Supply","version":"1.0","type":"link"}