{"product_id":"cleveland-c54885-hand-tap-7-8-9-unc-plug-4-flute-hss","title":"Cleveland C54885 Hand Tap 7\/8-9 Unc Plug 4-flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C54885 is a 7\/8-9 UNC straight-flute hand tap designed for cutting internal threads in both blind holes and through-holes. Made from high speed steel with a bright uncoated finish, it delivers reliable thread-cutting performance across a range of ferrous and non-ferrous materials. The plug chamfer style — with a moderate lead — makes it suited for starting threads in a pre-drilled hole without requiring a dedicated taper tap first. With four flutes and a Class 3B, H4 thread limit, it produces close-tolerance threads appropriate for precision assembly work in alloy steel, carbon steel, aluminum, and free-machining stainless steel applications.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for hand tapping operations performed by machinists, maintenance technicians, and tool-and-die tradespeople. It handles both blind hole and through-hole threading in general metalworking, fabrication, and repair scenarios. The 7\/8-9 UNC thread form is a common fastener size across structural, mechanical, and industrial applications, making this tap a regular fixture in job shops, maintenance departments, and field repair kits where standard unified coarse threads are specified.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/8-9 UNC thread form with Class 3B fit and H4 thread limit for tight-tolerance threading\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer provides a moderate lead, suitable for starting threads in blind or through-holes\u003c\/li\u003e\n  \u003cli\u003eFour straight flutes for chip clearance and consistent thread form\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles alloy steel, carbon steel, aluminum, and free-machining stainless steel\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating buildup to alter tap geometry over repeated use\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, compatible with standard tap wrenches and tapping fixtures\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 operations requiring a 7\/8-9 UNC thread form. Compatible with alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces. Part of the CLEVELAND Series 1002 standard tap line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMachinists and metalworking technicians should ensure the pilot hole is drilled to the correct tap drill diameter for 7\/8-9 UNC before use. Secure the workpiece firmly before tapping and apply appropriate cutting fluid to extend tap life and improve thread quality. Use a calibrated tap wrench or tapping fixture to maintain axial alignment and avoid tap breakage. Back the tap off periodically during hand tapping to break and clear chips, particularly in blind hole applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 9\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: 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 Length\u003c\/strong\u003e: 0.75 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\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  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1002\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.808 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: C54885\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51714435711282,"sku":"C54885","price":140.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b11c345e2d06ca2280d19474ca2b8463.jpg?v=1788501448","url":"https:\/\/voomisupply.com\/products\/cleveland-c54885-hand-tap-7-8-9-unc-plug-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}