Hertel R127267-S Pipe Tap 1/4-18 Npt 5 Flute Hss

Product Description

The HERTEL R127267-S is a 1/4-18 NPT interrupted thread pipe tap manufactured from high speed steel with a bright finish. It features 5 flutes and a regular hook geometry, making it well-suited for cutting tapered pipe threads in ferrous and non-ferrous materials. The interrupted thread design reduces cutting torque and helps clear chips more effectively than standard continuous-thread taps, improving performance in tougher materials. With an overall length of 2-7/16 inches, this tap is sized for hand or machine tapping operations performed by plumbers, pipefitters, and machinists cutting NPT threads in pipe fittings, couplings, and manifolds.

This tap is used when threading 1/4-18 NPT tapered pipe thread forms into drilled holes for pressure-tight connections in plumbing, HVAC, and fluid-handling applications. It is appropriate for both residential and commercial work where pipe fittings require field-tapped threads. The interrupted thread configuration makes it a preferred choice when tapping blind holes or working with materials that produce stringy chips. It is used with a standard tap wrench or tapping machine and is compatible with cutting fluids suited to the workpiece material.

Key Features

• 1/4-18 NPT tapered pipe thread form for pressure-tight pipe connections
• Interrupted thread design reduces cutting torque and improves chip evacuation
• 5-flute geometry provides additional cutting edges for smoother thread form
• High speed steel construction for durability in ferrous and non-ferrous materials
• Bright finish with regular hook — ready to use with standard cutting fluids
• Overall length of 2-7/16 inches suits standard tap wrenches and machine setups

Compatibility

Designed as an OEM-style replacement or direct-use tap for any application requiring a 1/4-18 NPT interrupted thread pipe tap in high speed steel construction.

Installation Notes

This tap is installed by machinists, pipefitters, or plumbers using a standard tap wrench or tapping machine. Always drill the correct NPT tap drill size before tapping and apply an appropriate cutting fluid to extend tool life and improve thread quality. Secure the workpiece firmly before tapping to prevent misalignment. Inspect the tapped thread with a pipe thread gauge before assembling fittings to verify thread form and prevent leaks.