{"product_id":"cleveland-c57128-spiral-point-tap-1-4-20-unc-hss","title":"Cleveland C57128 Spiral Point Tap 1\/4-20 Unc Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C57128 is a spiral point tap designed for through-hole threading in ferrous and non-ferrous metals. It cuts a 1\/4-20 UNC thread profile with a plug chamfer, which progressively engages the workpiece for clean thread formation. Built from high speed steel with a bright finish, this tap handles alloy steel, carbon steel, and aluminum in production and maintenance machining environments. The H2 thread limit and 2B class of fit make it suited for standard tolerance threaded fastener applications. With 2 flutes and a right-hand thread direction, it pushes chips forward through the hole, keeping the flutes clear during cutting.\u003c\/p\u003e\u003cp\u003eThis tap is used in through-hole threading operations on CNC machining centers, drill presses, and tapping machines, as well as hand-tapping setups on the bench. It is appropriate for general-purpose work in metalworking shops, maintenance facilities, and manufacturing environments where 1\/4-20 UNC threads are a common fastener standard. The plug chamfer style makes it a practical choice when starting threads from the face of a workpiece rather than a blind hole application.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point design pushes chips forward, ideal for through-hole threading\u003c\/li\u003e\n\u003cli\u003e1\/4-20 UNC thread profile with plug chamfer for progressive thread engagement\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction for durability across steel and aluminum workpieces\u003c\/li\u003e\n\u003cli\u003eH2 thread limit with 2B class of fit for standard tolerance fastener threads\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, 2 flutes\u003c\/li\u003e\n\u003cli\u003eBright finish with no coolant-through requirement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole threading of alloy steel, aluminum, and carbon steel workpieces requiring a 1\/4-20 UNC, 2B class of fit thread.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed and used by machinists and maintenance technicians working on manual or CNC tapping operations. Always secure the workpiece and ensure proper alignment before threading to avoid tap breakage. Use an appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Tapping torque limits should follow the machine or tap handle manufacturer guidelines for the tap size being used.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1011\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.038 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: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C57128\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51718162776370,"sku":"C57128","price":24.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6ce7059f2b9219d8f6398b042f63a73e.jpg?v=1788550509","url":"https:\/\/voomisupply.com\/products\/cleveland-c57128-spiral-point-tap-1-4-20-unc-hss","provider":"Voomi Supply","version":"1.0","type":"link"}