{"product_id":"cleveland-c54470-hand-tap-1-4-28-unf-plug-4-flute-hss","title":"Cleveland C54470 Hand Tap 1\/4-28 Unf Plug 4-flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C54470 is a straight-flute hand tap designed for cutting 1\/4-28 UNF internal threads in both blind and through-hole applications. Manufactured from high speed steel with a bright uncoated finish, it features a plug chamfer for easy thread starting and four flutes for efficient chip evacuation. The tap measures 2.5 inches overall with a thread length of 0.63 inches and conforms to Class 3B fit with an H3 thread limit. It is well suited for production and maintenance threading operations across a range of workpiece materials including alloy steel, aluminum, carbon steel, and free-machining stainless steel.\u003c\/p\u003e\n\u003cp\u003eThe C54470 belongs to Cleveland Series 1002 and is built for use in hand tapping setups or light machine tapping where a right-hand, straight-flute tap is appropriate. Its plug chamfer engages threads gradually, making it a practical choice for both starting threads in through-holes and completing threaded blind holes where chip clearance is manageable. Machinists and maintenance technicians working in job shops, manufacturing facilities, and MRO environments will find this tap reliable for moderate-volume threading tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-28 UNF thread form, right-hand cut, Class 3B fit with H3 thread limit\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer for controlled thread engagement in blind and through-hole applications\u003c\/li\u003e\n  \u003cli\u003eFour straight flutes promote chip flow and consistent thread form\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides hardness and wear resistance across common workpiece materials\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suits general-purpose threading without specialized coating requirements\u003c\/li\u003e\n  \u003cli\u003eShank diameter of 0.255 inches with a 5\/16-inch square drive for standard tap wrench compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for use in alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces. Suitable for blind hole threading and through-hole threading applications per Series 1002 design standards.\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 suitable tapping fixture. Always ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for a 1\/4-28 UNF thread before beginning the threading operation. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tool life. Back the tap off periodically to break chips when threading blind holes.\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 UNF\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: 28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\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: H3\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: 2.5 inches (63.5 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.63 inches (25.4 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches (6.48 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.3125 inches (7.94 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.191 inches (4.85 mm)\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\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\u003eSeries\u003c\/strong\u003e: 1002\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: C54470\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51691881857330,"sku":"C54470","price":21.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5f333f0ee4ae5756028e0690658379e3.jpg?v=1788290761","url":"https:\/\/voomisupply.com\/products\/cleveland-c54470-hand-tap-1-4-28-unf-plug-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}