{"product_id":"guhring-9019790021840-straight-flute-tap-2-56-unc","title":"Guhring 9019790021840 Straight Flute Tap 2-56 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9019790021840 is a straight flute tap designed for cutting internal threads in blind holes and through-holes. It features a 2-56 UNC thread form with 3 flutes and a modified bottoming chamfer, allowing thread cutting close to the bottom of a blind hole. Manufactured from cobalt high-speed steel with an oxide finish, this tap delivers added heat and wear resistance compared to standard HSS tooling. The right-hand thread direction and 2B class of fit make it a standard choice for general-purpose threaded fastener applications in precision machining and fabrication work. Overall length is 45 millimeters with a shank diameter of 2.80 millimeters.\u003c\/p\u003e\u003cp\u003eThis tap is suited for threading operations in gray cast iron, malleable iron, and spheroidal iron workpieces. The modified bottoming chamfer allows the tap to start cleanly and thread deeper into blind holes than a standard taper or plug chamfer would permit. It is appropriate for use in CNC machining centers, drill presses, and manual tapping applications where a fine 2-56 thread pitch is required. Machinists, toolmakers, and production operators in precision manufacturing environments are the typical users of this tool.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2-56 UNC thread form with 56 threads per inch and 2B class of fit\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003e3-flute straight flute geometry for chip clearance in short-chipping materials\u003c\/li\u003e\n\u003cli\u003eCobalt HSS construction with oxide finish for improved heat and wear resistance\u003c\/li\u003e\n\u003cli\u003eH2\/H3 thread limit for consistent tolerance control\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement; compatible with standard cutting fluids applied externally\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for blind hole threading and through-hole threading in gray cast iron, malleable iron, and spheroidal iron. Part of the GUHRING Series 1979 straight flute tap line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed and operated by a qualified machinist or toolmaker familiar with tapping procedures and speeds for cobalt HSS tooling. Secure the workpiece fully before beginning any threading operation and use an appropriate cutting fluid for ferrous materials to extend tool life. Ensure the tap is properly aligned with the drilled pilot hole to prevent tap breakage, particularly at this small diameter. Follow the machine manufacturer and tooling guidelines for spindle speed and feed rate when power tapping.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Modified 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\/H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 45.00 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 2.80 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 2.10 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading, Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Gray Cast Iron, Malleable Iron, Spheroidal Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1979\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.001 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GUHRING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9019790021840\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51732081541426,"sku":"9019790021840","price":48.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/86a6eb7b1736529ff268253eda689fa1_89c45a7a-6555-4856-891b-32e579b1d2c2.jpg?v=1788738991","url":"https:\/\/voomisupply.com\/products\/guhring-9019790021840-straight-flute-tap-2-56-unc","provider":"Voomi Supply","version":"1.0","type":"link"}