{"product_id":"cleveland-c64100-pipe-tap-3-8-18-npt-4-flute-hss","title":"Cleveland C64100 Pipe Tap 3\/8-18 Npt 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C64100 is a 3\/8-18 NPT interrupted thread pipe tap designed for cutting internal pipe threads in ferrous metals. Built from high speed steel with a bright finish, this plug-chamfer tap features 4 flutes and an interrupted thread geometry that helps clear chips more effectively during tapping operations. At 2.563 inches overall length with a 1.063-inch thread length and 0.700-inch shank diameter, the C64100 is sized for standard pipe tapping jobs in production and maintenance environments. It is installed by machinists, pipefitters, and HVAC-plumbing tradespeople working with threaded pipe connections.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for threading 3\/8-inch NPT connections in alloy steel and carbon steel workpieces. The plug chamfer style provides a gradual thread lead-in, making it appropriate for through-hole tapping where full thread engagement is needed from a mid-depth start. The interrupted thread profile reduces friction and improves chip evacuation, which is particularly useful in deeper holes or harder materials. Typical applications include threading pipe fittings, manifold ports, and service ports in HVAC, plumbing, and industrial piping systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eInterrupted thread geometry improves chip evacuation and reduces torque in alloy and carbon steel\u003c\/li\u003e\n  \u003cli\u003e4-flute design balances cutting efficiency with chip clearance\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer allows mid-depth thread starts in through holes\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides durability across production tapping cycles\u003c\/li\u003e\n  \u003cli\u003eBright finish — no coating buildup interference, suitable for use with cutting fluids\u003c\/li\u003e\n  \u003cli\u003eRegular hook geometry for standard tapping machine or hand-tap wrench use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 3\/8-18 NPT internal threads in alloy tool steel and carbon steel workpieces. Fits standard tap holders and tap wrenches accepting a 0.700-inch shank diameter with a 0.531-inch square drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap should be installed by a qualified machinist or pipefitter using a properly aligned tap wrench or tapping head. Secure the workpiece firmly before beginning and use an appropriate cutting fluid for the material being tapped to extend tap life and improve thread finish. Back the tap off periodically to break and clear chips, especially in deeper holes. Inspect threads with a NPT thread gauge after tapping to verify proper fit before assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-18 NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHook\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.563 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.063 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.700 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.531 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 0.454 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Tool Steel, Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: C64100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51690323837234,"sku":"C64100","price":161.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a7ed608efadb2a0567da571d4077280a.jpg?v=1788268768","url":"https:\/\/voomisupply.com\/products\/cleveland-c64100-pipe-tap-3-8-18-npt-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}