{"product_id":"cleveland-c54971-hand-tap-1-1-8-12-unf-taper-4-flute-hss","title":"Cleveland C54971 Hand Tap 1-1\/8-12 Unf Taper 4-flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C54971 is a 1-1\/8-12 UNF straight flute hand tap designed for cutting internal threads in metalworking applications. Manufactured from high speed steel with a bright uncoated finish, this tap features a taper chamfer and 4-flute geometry that guides the tool into the workpiece and clears chips during threading. The right-hand thread direction, Class 3B fit, and H4 thread limit make it suitable for precision threading work in production and maintenance environments. Overall length is 5.438 inches with a thread length of 2.56 inches and a shank diameter of 0.896 inches. Machinists, toolroom technicians, and maintenance mechanics install this tap by hand or with a tap wrench.\u003c\/p\u003e\n\u003cp\u003eThis tap handles both blind hole and through-hole threading operations across a range of ferrous and non-ferrous materials. It is well suited for use in alloy steel, carbon steel, aluminum, and free-machining stainless steel workpieces. The 1-1\/8-12 UNF thread size is common in industrial fastener and hydraulic fitting applications where fine-thread engagement is required. The taper chamfer — typically 8 to 10 threads of lead — helps with starting alignment in manual tapping operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-1\/8-12 UNF thread form with Class 3B fit and H4 thread limit for precision tolerance control\u003c\/li\u003e\n  \u003cli\u003eTaper chamfer for easy thread starting in blind and through-hole applications\u003c\/li\u003e\n  \u003cli\u003e4-flute straight flute design suits short-chipping materials including aluminum, carbon steel, and alloy steel\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides hardness and wear resistance for general-purpose threading\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating variables to account for in application setup\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction; compatible with standard tap wrench and machine tap holder drives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in blind hole and through-hole threading of alloy steel, aluminum, carbon steel, and free-machining stainless steel. Fits standard tap wrench drivers sized for a 0.896-inch shank diameter and a 0.672-inch square drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or qualified maintenance mechanic should perform all tapping operations. Secure the workpiece fully before starting; use cutting fluid appropriate to the workpiece material to extend tap life and improve thread quality. Apply steady, even torque — reverse the tap periodically to break chips when working in blind holes. Never force a tap against an obstruction; doing so risks tap breakage and workpiece damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\u003eThreads per Inch\u003c\/strong\u003e: 12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Taper\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\u003eNumber of Flutes\u003c\/strong\u003e: 4\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 (7\/8 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\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Free-Machining Stainless Steel\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: CLEVELAND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C54971\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51709379707186,"sku":"C54971","price":309.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d6f456b031cf71f59184c47fc9f10beb.jpg?v=1788455541","url":"https:\/\/voomisupply.com\/products\/cleveland-c54971-hand-tap-1-1-8-12-unf-taper-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}