{"product_id":"cleveland-c54892-hand-tap-7-8-14-unf-bottoming-hss","title":"Cleveland C54892 Hand Tap 7\/8-14 Unf Bottoming Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C54892 is a straight-flute hand tap designed for cutting internal threads in metal workpieces. It is ground from high speed steel and carries a bright, uncoated finish that suits general-purpose tapping across a range of ferrous and non-ferrous materials. The tap cuts a 7\/8-14 UNF right-hand thread to a Class 3B fit with an H4 thread limit, making it appropriate for applications that demand close thread tolerances. Overall length is 4.688 inches with a thread length of 2.22 inches. The bottoming chamfer allows threads to be carried to the bottom of blind holes where clearance is limited. Licensed machinists, toolmakers, and maintenance mechanics are the typical installers.\u003c\/p\u003e\u003cp\u003eThe C54892 is suited for blind-hole and through-hole threading operations in job-shop, production, and MRO environments. It performs in alloy steel, carbon steel, aluminum, and free-machining stainless steel. The 4-flute straight-flute geometry works best in materials that produce short, broken chips rather than long stringy ones. Applications include threading fastener holes in structural components, fixtures, tooling plates, and machine housings where a fine 14-TPI unified thread is specified.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer for threading to the base of blind holes\u003c\/li\u003e\n\u003cli\u003e4-flute straight-flute design for chip control in short-chipping materials\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction for durability across production and MRO use\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish compatible with most cutting fluids and tapping compounds\u003c\/li\u003e\n\u003cli\u003eClass 3B, H4 thread limit for close-tolerance internal thread accuracy\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement simplifies setup on standard tapping equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for blind-hole and through-hole threading in alloy steel, carbon steel, aluminum, and free-machining stainless steel where a 7\/8-14 UNF Class 3B internal thread is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eHand taps in this size range are driven with a tap wrench sized to the 0.750-inch square drive. Apply an appropriate cutting fluid or tapping compound for the workpiece material before starting the thread. Ensure the tap is started square to the hole axis to avoid cross-threading or tap breakage. Back the tap off periodically to break and clear chips, particularly in blind holes.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Bottoming\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: H4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.688 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 2.22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.697 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.523 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.750 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\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Free-Machining Stainless Steel\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.808 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: C54892\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51709713121586,"sku":"C54892","price":141.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/416919426408e2bf96bc3f291603e125.jpg?v=1788459469","url":"https:\/\/voomisupply.com\/products\/cleveland-c54892-hand-tap-7-8-14-unf-bottoming-hss","provider":"Voomi Supply","version":"1.0","type":"link"}