Hertel R867378-S Pipe Tap 1/8-27 Nptf 5 Flute Hss

Product Description

The HERTEL R867378-S is a 1/8-27 NPTF interrupted thread pipe tap manufactured from high speed steel with a bright finish. Interrupted thread geometry alternates cutting and relief flutes to break chips and reduce torque during tapping, which is especially useful in deeper or blind pipe thread applications. The 5-flute configuration provides efficient material removal while maintaining thread accuracy to NPTF standards. At 2.125 inches overall length and weighing 0.05 pounds, this tap is a compact hand or machine tool used by plumbers, pipefitters, and machinists to cut internal tapered pipe threads in metal workpieces.

This tap is suited for cutting 1/8-27 NPTF tapered pipe threads in ferrous and non-ferrous metals. NPTF threads are designed to form a pressure-tight seal without the need for sealant tape or compound, making this tap a common choice for hydraulic fittings, pneumatic components, and plumbing manifolds in both residential and light industrial settings. It is used in manual tapping with a tap wrench or in CNC and drill press applications where controlled feed and speed are maintained.

Key Features

• Interrupted thread design breaks chips and reduces cutting torque in pipe thread applications
• 5 flutes provide balanced cutting action and efficient chip evacuation
• High speed steel construction handles a wide range of metal materials
• Bright finish with no coating for straightforward visual inspection after use
• NPTF thread standard produces pressure-tight tapered internal pipe threads
• Compact at 2.125 inches overall length for use in confined areas

Compatibility

Designed for cutting 1/8-27 NPTF internal pipe threads in metal components requiring pressure-tight tapered thread connections.

Installation Notes

Installation of pipe taps should be performed by a qualified machinist, pipefitter, or plumber using a properly sized tap wrench or machine tapping setup. Always use appropriate cutting fluid for the base material to extend tap life and improve thread quality. Secure the workpiece firmly before tapping and back off the tap periodically to break and clear chips. Inspect the tap for wear or damage before each use and replace if cutting edges are dull or chipped.