Cleveland C64110 Pipe Tap 3/8-18 NPTF 5 Flutes

Cleveland C64110 pipe tap

The Cleveland C64110 is a 3/8"-18 NPTF semi-bottoming tap with five flutes made from high speed steel. It is intended for machinists and maintenance technicians who need to cut internal pipe threads in steel or iron components. The bright uncoated finish suits general-purpose workshop use where coatings are not required. This tool addresses the need for accurate taper threads in fluid-power and plumbing assemblies.

Fits standard tap holders and wrenches

The tap shank fits standard holders for 3/8 inch pipe sizes so it can be driven by hand or by a reversible tapping head on a drill press. Its semi-bottoming chamfer lets it start threads in through-holes and reach near the bottom of blind holes without needing a separate starter tap. The 75 percent thread drill size of .5625 inch simplifies hole preparation because the same drill works for this pitch. Users who need a taper-thread form other than NPTF or a different flute count will need another tool.

High speed steel construction resists wear

High speed steel construction resists wear during repeated cuts in ferrous metals while the bright finish allows easy inspection of the cutting edges. Five flutes provide good chip evacuation and a smoother finish than three-flute designs when cutting at typical hand-tapping speeds. Cutting fluid is recommended to manage heat and extend tool life in tougher alloys. The tap is not suited for high-volume CNC tapping cycles where coated or carbide tools would be more economical.