{"product_id":"osg-1731701-spiral-point-plug-tap-5-8-18-unf-3-flute","title":"Osg 1731701 Spiral Point Plug Tap 5\/8-18 Unf 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1731701 is a spiral point plug tap designed for cutting 5\/8-18 UNF right-hand internal threads in ferrous metals. The spiral point geometry pushes chips forward ahead of the cutting zone, making it well suited for through-hole tapping operations where chip packing is a concern. Built from vanadium high-speed steel (HSS-E) and finished with a steam oxide coating to reduce friction and improve lubrication retention, the 1731701 holds a 3B class of fit and an H3 thread limit for consistent dimensional accuracy across production and maintenance work. Machining professionals, tool-and-die technicians, and maintenance mechanics use this tap where a reliable, true-to-tolerance UNF thread is required.\u003c\/p\u003e\u003cp\u003eThe 1731701 is suited for through-hole tapping in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. The plug chamfer distributes cutting load across several lead threads, reducing stress on entry and making it a practical choice for both production runs and field maintenance applications. The oxide finish helps in lower-speed hand-tapping scenarios as well as machine tapping where cutting fluid is applied. This tap is not designed for interrupted thread or coolant-through use.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward, ideal for through-hole tapping\u003c\/li\u003e\n\u003cli\u003ePlug chamfer for gradual load distribution on thread entry\u003c\/li\u003e\n\u003cli\u003eVanadium high-speed steel (HSS-E) construction for wear resistance in ferrous materials\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and aids in cutting fluid retention\u003c\/li\u003e\n\u003cli\u003eH3 thread limit and 3B class of fit for consistent, tolerance-controlled threads\u003c\/li\u003e\n\u003cli\u003eRight-hand thread cutting, Series 300\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 5\/8-18 UNF right-hand internal threads in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. Compatible with standard tap holders and machines accepting the 0.48-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachinists and maintenance mechanics should secure the workpiece firmly before tapping and ensure the tap is properly aligned with the pilot hole to avoid thread skew or tap breakage. Apply appropriate cutting fluid for the workpiece material, particularly when tapping stainless or hardened steel. Power down all equipment before clearing chips or changing tooling. Follow shop safety procedures and applicable OSHA standards when operating tapping equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-18 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\u003eThread Direction\u003c\/strong\u003e: Right Hand\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\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: 3.811 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.118 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.48 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: 0.205 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: 1731701\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743630557490,"sku":"1731701","price":107.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/db1878db6abf6365f15232f7ac8366f5.jpg?v=1788848643","url":"https:\/\/voomisupply.com\/products\/osg-1731701-spiral-point-plug-tap-5-8-18-unf-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}