Cleveland C64102 Pipe Tap 3/4-14 Npt 5 Flute Hss Plug

Product Description

The CLEVELAND C64102 is a 3/4-14 NPT interrupted thread pipe tap manufactured from high speed steel. It is designed to cut internal tapered pipe threads in metal workpieces, producing threads that accept standard NPT fittings and pipe. The interrupted thread geometry reduces cutting friction and chip packing, making it well-suited for tougher ferrous materials. With a plug chamfer and 5-flute design, the C64102 delivers controlled thread engagement from the start of the cut. Overall length is 3.25 inches, thread length is 1.375 inches, and shank diameter is 0.9063 inches. Machinists and pipefitters working in fabrication, maintenance, or repair operations install this tap by hand or with a tap wrench.

This tap is intended for cutting 3/4-14 NPT pipe threads in alloy tool steel and carbon steel workpieces. The plug chamfer style — with a moderate lead taper — makes it appropriate for through-hole and most blind-hole pipe thread applications. It is commonly used in industrial maintenance, pipe fitting fabrication, and machine shop environments where NPT-threaded ports and connections are required. The bright finish provides a clean surface with no additional coating that could affect tolerance.

Key Features

• Interrupted thread design reduces cutting friction and chip packing in tough ferrous materials
• 5-flute geometry provides even chip load distribution and smooth thread formation
• Plug chamfer style with moderate lead taper suits through-hole and most blind-hole applications
• High speed steel construction delivers durability across alloy tool steel and carbon steel applications
• Bright finish with no additional coating maintains dimensional accuracy to NPT thread standard
• Square drive shank compatible with standard tap wrenches and machine holders

Compatibility

Designed to cut 3/4-14 NPT internal tapered pipe threads in alloy tool steel and carbon steel workpieces per the NPT thread standard.

Installation Notes

Installation is performed by machinists or pipefitters using a tap wrench or tapping machine sized for the shank. Ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for 3/4-14 NPT before beginning. Apply appropriate cutting fluid for the material being tapped to extend tool life and improve thread quality. Do not force the tap if resistance increases sharply — back off to break the chip before continuing.