{"product_id":"osg-1725301-spiral-point-tap-7-8-14-unf-3-flute-plug","title":"Osg 1725301 Spiral Point Tap 7\/8-14 Unf 3 Flute Plug","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1725301 is a spiral point plug tap designed for cutting right-hand internal threads to a 7\/8-14 UNF specification. It is manufactured from vanadium high-speed steel (HSS-E) and finished with a steam oxide coating that reduces friction and provides light corrosion resistance during storage and use. The plug chamfer distributes cutting forces across the leading threads for smooth entry into through-holes. With a 3B class of fit and H4 thread limit, this tap produces threads within close commercial tolerances. Overall length is 4.689 inches, and the threaded length is 1.37 inches. It is used by machinists, tool-and-die makers, and maintenance technicians working in metal fabrication and industrial repair.\u003c\/p\u003e\u003cp\u003eThis tap is suited for through-hole tapping applications in a range of ferrous materials. Its HSS-E construction and oxide coating make it appropriate for use in low-carbon steel, medium-carbon steel, hardened steel, and stainless steel workpieces. The spiral point geometry pushes chips forward ahead of the tap, keeping flutes clear in through-hole conditions. It is a single-piece tap from OSG Series 300, intended for use in both manual and machine tapping setups where a 7\/8-14 UNF thread form is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e7\/8-14 UNF thread form with 3B class of fit and H4 thread limit for close commercial tolerances\u003c\/li\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward, suited for through-hole tapping\u003c\/li\u003e\n\u003cli\u003eVanadium high-speed steel (HSS-E) construction for durability in ferrous materials\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and provides light corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePlug chamfer distributes cutting load across leading threads for smooth entry\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, non-coolant-through design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole tapping of 7\/8-14 UNF threads in low-carbon steel, medium-carbon steel, hardened steel, and stainless steel. Suitable for manual tap handles and machine tapping operations using standard 7\/8-14 UNF toolholding.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003ePower down or de-energize any machine before installing or changing taps. Secure the tap in an appropriately sized tap wrench or machine holder rated for the shank diameter before beginning the tapping operation. Apply a cutting fluid appropriate for the workpiece material, particularly when working with stainless or hardened steel. Inspect threads with a 3B go\/no-go gauge after tapping to verify fit before assembly.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-14 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\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: H4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel (HSS-E)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.689 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.37 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.697 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: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.489 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: 1725301\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51742980079922,"sku":"1725301","price":190.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5e5bc26d873adb824c6a998f89e39d63.jpg?v=1788841162","url":"https:\/\/voomisupply.com\/products\/osg-1725301-spiral-point-tap-7-8-14-unf-3-flute-plug","provider":"Voomi Supply","version":"1.0","type":"link"}