{"product_id":"cleveland-c55391-spiral-point-tap-3-8-24-unf-ticn-hss","title":"Cleveland C55391 Spiral Point Tap 3\/8-24 Unf Ticn Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C55391 is a spiral point tap designed for through-hole threading in metalworking applications. Built from high speed steel with a TiCN (titanium carbonitride) finish, it cuts a 3\/8-24 UNF right-hand thread with a plug chamfer and H3 thread limit. The 3-flute spiral point geometry pushes chips forward ahead of the cutting zone, making it well suited for through-hole work where chip evacuation is critical. With an overall length of 2.9375 inches and a thread length of 0.75 inches, it fits standard tap holders and drive equipment used in machine shop and field maintenance settings. Machinists, tool and die technicians, and maintenance mechanics are the typical users.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for through-hole threading operations in cast iron, stainless steel, and steel. The plug chamfer provides a gradual lead-in that distributes cutting forces across multiple threads, reducing tap breakage in harder materials. At 3\/8-24 UNF, it is commonly used in precision fastener applications where fine-thread engagement is required, such as instrument mounting, hydraulic fittings, and structural assemblies. It is not rated for coolant-through use and is not an oversize tap.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward, optimized for through-hole threading\u003c\/li\u003e\n  \u003cli\u003eTiCN coating improves wear resistance and extends tool life in ferrous materials\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles cast iron, stainless steel, and steel\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer (4-5 thread lead) suits production and general-purpose tapping\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit maintains consistent 2B class of fit tolerances\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, 3 flutes, no coolant-through requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading in cast iron, stainless steel, and steel workpieces. Fits standard tap holders sized for a 0.381-inch shank diameter. Part of the Cleveland Series 1011TICN product line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap should be installed and operated by a qualified machinist or maintenance mechanic familiar with tapping feeds, speeds, and tap holder alignment. Secure the workpiece fully before starting the threading operation and confirm the tap is running true to avoid breakage. Use an appropriate cutting fluid for the workpiece material, particularly when threading stainless steel. Follow shop safety procedures and applicable OSHA machine operation guidelines when using rotary cutting tools.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-24\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: 24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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, Stainless Steel, Steel\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: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.9375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.381 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.51 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1011TICN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.2 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: C55391\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51691377721650,"sku":"C55391","price":49.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1203c7854de6d4d70acfe82a7e73aef6_b1935830-3f01-4593-a37f-7a24c2ea5ed0.jpg?v=1788284130","url":"https:\/\/voomisupply.com\/products\/cleveland-c55391-spiral-point-tap-3-8-24-unf-ticn-hss","provider":"Voomi Supply","version":"1.0","type":"link"}