{"product_id":"cleveland-c60752-hand-tap-1-4-28-lh-plug-hss-unf","title":"Cleveland C60752 Hand Tap 1\/4-28 Lh Plug Hss Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C60752 is a 1\/4-28 left-hand plug chamfer hand tap ground from bright high speed steel. It is designed for cutting internal threads in through-holes where standard right-hand taps cannot be used. The 4-flute straight flute geometry produces clean, accurate threads to a 3B class of fit with an H3 thread limit, holding tight tolerances suitable for precision assemblies. With a 2.5-inch overall length and a 1-inch thread length, this tap is sized for general-purpose machine and fabrication work. Licensed machinists, tool-and-die makers, and maintenance technicians are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for through-hole threading operations in a range of materials including steel, cast iron, stainless steel, aluminum, and other non-ferrous metals. The plug chamfer — 3 to 5 threads of lead — makes it appropriate for starting and finishing threads in through-holes where full thread engagement is needed from the start. It is commonly used in manual tapping operations on drill presses, mills, or by hand with a tap wrench in production and maintenance settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand thread direction for applications requiring reverse-thread fasteners or left-hand threaded components\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer provides 3 to 5 threads of lead for easy starting in through-holes\u003c\/li\u003e\n  \u003cli\u003e4-flute straight flute design for clean thread cutting in a wide range of metals\u003c\/li\u003e\n  \u003cli\u003eBright uncoated high speed steel construction — no coating to flake or delaminate during use\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit and 3B class of fit for precise, consistent thread geometry\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement — compatible with standard hand tapping and manual machine operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading of 1\/4-28 UNF left-hand threads in steel, cast iron, stainless steel, aluminum, and non-ferrous metals. Compatible with standard tap wrenches and machine holders accepting a 0.255-inch shank diameter with a 5\/16-inch square drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists and maintenance technicians using a tap wrench or appropriate machine holder. Always ensure the workpiece is securely clamped and the pilot hole is drilled to the correct tap drill size for a 1\/4-28 UNF thread before tapping. Apply cutting fluid appropriate for the workpiece material to reduce heat and extend tap life. Never force a tap — back off periodically to break chips and prevent tap breakage, especially in stainless steel or other work-hardening alloys.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\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: Left Hand\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: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\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: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 28\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: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.191 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\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal, Aluminum, Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0379 pounds\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: C60752\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51721940468018,"sku":"C60752","price":36.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/329e33bb6019d1cad479cc68e690d9ff.jpg?v=1788583482","url":"https:\/\/voomisupply.com\/products\/cleveland-c60752-hand-tap-1-4-28-lh-plug-hss-unf","provider":"Voomi Supply","version":"1.0","type":"link"}