{"product_id":"osg-1651506208-spiral-point-tap-5-16-32-unef-plug-3b","title":"Osg 1651506208 Spiral Point Tap 5\/16-32 Unef Plug 3B","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1651506208 is a spiral point tap designed for cutting internal threads in a wide range of ferrous and non-ferrous metals. It produces a 5\/16-32 UNEF right-hand thread to a 3B class of fit with an H3 thread limit, delivering consistent dimensional accuracy for precision threaded assemblies. The tap is manufactured from powdered metal and finished with an OSG V (VC-10) coating, which reduces friction and extends tool life across demanding materials. Overall length is 3.15 inches with a thread length of 0.653 inches and a shank diameter of 0.318 inches. Licensed machinists and tool-and-die professionals install this tap using a tap wrench, CNC tapping head, or drill press with tapping attachment.\u003c\/p\u003e\u003cp\u003eThis tap is suited for through-hole tapping applications in production and maintenance machining environments. The spiral point design pushes chips forward ahead of the tap, making it effective in through-holes where chip evacuation is straightforward. It is appropriate for use in alloy steel, aluminum, cast aluminum, cast iron, hardened steel, high-carbon steel, low-carbon steel, medium-carbon steel, stainless steel, and die steel. Both manual and machine tapping setups in job shop, OEM, and MRO contexts are typical application scenarios.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5\/16-32 UNEF thread form with 3B class of fit and H3 thread limit for precise tolerance control\u003c\/li\u003e\n\u003cli\u003ePowdered metal construction provides superior wear resistance compared to standard HSS\u003c\/li\u003e\n\u003cli\u003eOSG V (VC-10) coating reduces cutting friction and improves tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward, optimized for through-hole tapping\u003c\/li\u003e\n\u003cli\u003ePlug chamfer with 3 flutes balances chip clearance and thread engagement on entry\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, no coolant-through feature, non-interrupted thread form\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole tapping of 5\/16-32 UNEF threads in alloy steel, aluminum, cast aluminum, cast iron, hardened steel, high-carbon steel, low-carbon steel, medium-carbon steel, stainless steel, and die steel workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following standard tapping practices. Ensure the workpiece is securely fixtured and the tap is properly aligned with the drilled pilot hole before engagement. Use a suitable tapping fluid or cutting oil appropriate to the workpiece material to promote chip evacuation and reduce heat buildup. Do not reverse the tap abruptly under load, as powdered metal tooling can fracture if subjected to sudden torque reversals without proper technique.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-32 UNEF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNEF\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\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: V (EXOTAP VC-10)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.15 inches (90 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.653 inches (16.9 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Thread\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 16515\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.057 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: 1651506208\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51727281619250,"sku":"1651506208","price":72.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/829639606e7c62b5648ca5e92f6da095.jpg?v=1788675839","url":"https:\/\/voomisupply.com\/products\/osg-1651506208-spiral-point-tap-5-16-32-unef-plug-3b","provider":"Voomi Supply","version":"1.0","type":"link"}