{"product_id":"cleveland-c55390-spiral-point-tap-3-8-16-unf-ticn-hss","title":"Cleveland C55390 Spiral Point Tap 3\/8-16 Unf Ticn Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C55390 is a spiral point plug tap designed for through-hole threading in metalworking and machining applications. Built from high speed steel with a titanium carbonitride (TiCN) coating, it delivers improved wear resistance and surface hardness compared to uncoated tooling. The 3\/8-16 UNF thread form with a 3-flute spiral point geometry pushes chips forward ahead of the cutting action, making it well suited for tapping in through-hole configurations. Overall length is 2.94 inches with a 0.75-inch thread length. The H3 thread limit provides the correct tolerance for Class 2B fit requirements in general-purpose fastener applications. This tap is installed by machinists, toolmakers, and maintenance technicians working with ferrous metals.\u003c\/p\u003e\n\u003cp\u003eThe C55390 is rated for use in cast iron, stainless steel, and steel. The plug chamfer distributes cutting load across several leading threads, reducing the force required to start the tap and improving thread quality at the entry. Right-hand cutting direction matches standard right-hand thread fastener requirements. The TiCN finish extends tool life in abrasive and hard materials compared to bright or TiN-coated alternatives. This tap is part of the CLEVELAND Series 1011TICN product line and is sold individually in single-unit packaging.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8-16 UNF thread form with H3 thread limit for Class 2B fit\u003c\/li\u003e\n  \u003cli\u003eTiCN coating increases surface hardness and wear resistance for longer tool life in ferrous materials\u003c\/li\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward, optimized for through-hole tapping\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer distributes cutting load over several threads for easier tap entry\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles cast iron, stainless steel, and steel applications\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, no coolant-through requirement, not oversize\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for through-hole threading in cast iron, stainless steel, and steel workpieces. Designed for use with standard tap holders and machine spindles accepting the 0.381-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists and maintenance technicians using a tapping machine, CNC machining center, or hand tap wrench. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the drilled hole before engagement. Apply a suitable cutting fluid for the work material to improve finish quality and extend tool life. Inspect the tap for wear or chipping before each use and replace when cutting torque increases noticeably or thread quality degrades.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\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: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\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\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\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.94 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: C55390\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51689207038258,"sku":"C55390","price":48.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1203c7854de6d4d70acfe82a7e73aef6.jpg?v=1788256167","url":"https:\/\/voomisupply.com\/products\/cleveland-c55390-spiral-point-tap-3-8-16-unf-ticn-hss","provider":"Voomi Supply","version":"1.0","type":"link"}