{"product_id":"cleveland-c54972-hand-tap-1-1-8-12-unf-plug-4-flute-hss","title":"Cleveland C54972 Hand Tap 1-1\/8-12 Unf Plug 4-flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C54972 is a straight-flute hand tap designed for cutting 1-1\/8-12 UNF threads in both blind and through-hole applications. It features a plug chamfer, right-hand thread direction, and a 4-flute geometry ground to an H4 thread limit with a 3B class of fit. The tap is manufactured from high speed steel with a bright uncoated finish, making it suitable for use without coolant-through capability. Overall length is 5.438 inches, with a thread length of 2.56 inches. Series 1002 construction is targeted at professional machinists and trade technicians who require accurate, repeatable thread form in production or repair environments.\u003c\/p\u003e\u003cp\u003eThis tap is used in metalworking and maintenance applications where fine unified threads are required on larger fastener sizes. The plug chamfer makes it well suited for starting threads in through-holes or partially threading blind holes where a bottom tap is not needed. Rated for use in alloy steel, aluminum, carbon steel, and free-machining stainless steel, it covers a wide range of common shop and field materials. The 0.896-inch shank diameter provides solid drive engagement in standard tap holders and wrenches.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-1\/8-12 UNF thread form, right-hand, 3B class of fit\u003c\/li\u003e\n\u003cli\u003eH4 thread limit for consistent sizing across production runs\u003c\/li\u003e\n\u003cli\u003e4-flute straight-flute geometry for chip control in both blind and through-hole threading\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction, bright uncoated finish\u003c\/li\u003e\n\u003cli\u003eRated for alloy steel, aluminum, carbon steel, and free-machining stainless steel\u003c\/li\u003e\n\u003cli\u003e7\/8-inch square drive end for standard tap wrench engagement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for blind hole and through-hole threading in a range of ferrous and non-ferrous metals including alloy steel, aluminum, carbon steel, and free-machining stainless steel. Fits standard tap holders and wrenches sized for a 0.672-inch square drive.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eHand taps should be installed and driven by a qualified machinist or tooling technician using a properly sized tap wrench. Always secure the workpiece and ensure the starting hole is drilled to the correct tap drill diameter for a 1-1\/8-12 UNF thread before tapping. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Back the tap off periodically during threading to break chips and prevent binding, particularly in blind hole applications.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-1\/8-12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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\u003eChamfer\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.438 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 2.56 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.896 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.672 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.875 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\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eCompatible Materials\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Free-Machining Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.44 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: C54972\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51710752457010,"sku":"C54972","price":311.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4a6a202719e68c4e4cd671f199fcb5de.jpg?v=1788470191","url":"https:\/\/voomisupply.com\/products\/cleveland-c54972-hand-tap-1-1-8-12-unf-plug-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}