{"product_id":"osg-1011105-straight-flute-tap-2-56-unc-bottoming-tin-hss","title":"Osg 1011105 Straight Flute Tap 2-56 Unc Bottoming Tin Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1011105 is a straight flute bottoming tap designed to cut internal threads in blind and through holes requiring full thread depth close to the bottom. Built from high-speed steel with a titanium nitride (TiN) coating, it produces clean, accurate threads in a 2-56 UNC configuration at 56 threads per inch. The bottoming chamfer allows threading to within a few threads of the bottom of a blind hole. At 1.75 inches overall length with a 0.437 inch thread length, this compact tap fits standard tap holders and T-handle wrenches used in machining and assembly work. Class of fit is 2B with an H2 thread limit for consistent dimensional results.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for small-fastener tapping operations in light manufacturing, precision machining, electronics assembly, and maintenance work. The 2-56 UNC thread size is common in miniature hardware, instrument panels, circuit board standoffs, and small enclosures. Material applications include aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel. It is part of OSG Series 102 and is intended for use where a bottoming chamfer is required to maximize thread engagement depth in a confined hole.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer allows full thread depth at the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eTiN coating reduces friction and wear, extending tool life in steel and aluminum\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction handles a broad range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003e3 straight flutes for chip clearance in through and shallow blind holes\u003c\/li\u003e\n  \u003cli\u003e2B class of fit with H2 thread limit for standard tolerance internal threads\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, no coolant-through requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for tapping 2-56 UNC internal threads in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel workpieces. Compatible with standard tap holders, T-handle wrenches, and machine tap adapters accepting a 0.141 inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed and used by machinists, toolmakers, and assembly technicians. Always drill the correct tap drill size for a 2-56 UNC thread before tapping, and ensure the workpiece is secured before starting. Apply cutting fluid appropriate for the workpiece material to reduce heat and improve thread finish. Do not force the tap if resistance increases sharply, as breakage of small-diameter taps is common when over-torqued.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 2-56 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 56\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.75 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\u003eSquare Length\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.11 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: TiN (Titanium Nitride)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Aluminum, Cast Iron, High-Carbon Steel, Low-Carbon Steel, Medium-Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 102\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.025 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 1011105\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51733320204594,"sku":"1011105","price":32.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ccb238e484622141d2bd34298fef77b7.jpg?v=1788754172","url":"https:\/\/voomisupply.com\/products\/osg-1011105-straight-flute-tap-2-56-unc-bottoming-tin-hss","provider":"Voomi Supply","version":"1.0","type":"link"}