{"product_id":"osg-1734701-spiral-point-tap-2-56-unc-plug-hss","title":"Osg 1734701 Spiral Point Tap 2-56 Unc Plug Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1734701 is a spiral point tap designed for cutting right-hand internal threads in a range of ferrous materials. Built from vanadium high speed steel (HSS-E) with a steam oxide coating, it produces a 2-56 UNC thread profile using a 2-flute, plug chamfer geometry. The plug chamfer provides a gradual lead-in, making it well suited for through-hole tapping applications where the tap can push chips forward ahead of the cutting edge. Overall length is 1.752 inches, thread length is 0.437 inches (7\/16 inches), and shank diameter is 0.141 inches. Thread limit is H3, indicating a standard tolerance class for general-purpose UNC threading.\u003c\/p\u003e\u003cp\u003eThis tap is intended for use in through-hole tapping operations on hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. The 2-56 UNC thread size is common in precision instrument work, electronics, and small mechanical assemblies. The steam oxide finish provides a degree of lubricity and mild corrosion resistance during operation, which is particularly useful when tapping stainless steel or working without flood coolant. Coolant-through capability is not available on this tap.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2-56 UNC right-hand thread form, H3 tolerance class for consistent fit\u003c\/li\u003e\n\u003cli\u003eVanadium high speed steel (HSS-E) construction for improved wear resistance over standard HSS\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating adds lubricity and mild corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePlug chamfer geometry pushes chips forward, suited for through-hole tapping\u003c\/li\u003e\n\u003cli\u003e2-flute design keeps tool diameter minimal for small thread sizes\u003c\/li\u003e\n\u003cli\u003eNo interrupted thread or oversize profile  -  standard OEM-style replacement geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole tapping of 2-56 UNC threads in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by machinists or precision assembly technicians using a standard tap wrench or CNC tapping cycle. Always secure the workpiece before tapping and ensure the starter hole is drilled to the correct tap drill diameter for a 2-56 UNC thread. Apply appropriate cutting fluid, especially when tapping stainless steel, to reduce heat and extend tool life. Do not reverse the tap aggressively when breaking chips  -  back off smoothly to avoid tap breakage in small-diameter threads.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 2-56\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\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: 1.752 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.437 inches (7\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 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\u003eWeight\u003c\/strong\u003e: 0.009 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 300\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: 1734701\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743390957874,"sku":"1734701","price":55.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6fac5280a0658cf41c68bc45ab59fb06.jpg?v=1788846525","url":"https:\/\/voomisupply.com\/products\/osg-1734701-spiral-point-tap-2-56-unc-plug-hss","provider":"Voomi Supply","version":"1.0","type":"link"}