Reiff Nestor 46264 Pipe Tap 1/8-27 Nptf 4 Flute Hss Nitride

Product Description

The REIFF NESTOR 46264 is a standard pipe tap designed to cut 1/8-27 NPTF internal pipe threads in metal workpieces. Built from high speed steel with a nitride finish, it delivers the wear resistance and cutting performance needed for production and maintenance threading operations. The tap features 4 flutes for efficient chip evacuation and a low hook geometry suited to controlled cutting in a variety of ferrous and non-ferrous materials. With a thread length of 0.75 inches and a shank diameter of 0.4375 inches, it fits standard tap drivers and machine collets sized for this class of tooling.

This tap is used wherever a 1/8-27 NPTF tapered pipe thread is required, including hydraulic fittings, pneumatic manifolds, fluid control components, and plumbing adapters in residential and commercial mechanical systems. Machinists, pipefitters, and maintenance technicians reach for it when threading ports in aluminum housings, steel blocks, cast iron bodies, or similar substrates. The NPTF standard produces a dry-seal thread form that holds pressure without relying on sealant tape alone, making it appropriate for low-pressure fluid and gas port applications.

Key Features

• 1/8-27 NPTF thread form produces a dry-seal tapered pipe thread
• High speed steel construction provides hardness and thermal resistance for production threading
• Nitride finish improves surface hardness and reduces friction during the cut
• 4-flute design promotes chip clearance and balanced cutting load
• Low hook geometry suits a range of metal types and reduces the risk of grabbing
• Compact projection of 0.312 inches allows use in shallow or confined port locations

Compatibility

Designed for use in any application requiring a 1/8-27 NPTF internal pipe thread, and fits standard tap drivers, T-handle wrenches, and machine spindles accepting a 0.4375-inch shank with a 0.328-inch square drive.

Installation Notes

This tap is installed by machinists and mechanical tradespeople using a calibrated tap wrench, drill press, or CNC tapping attachment. Always drill the correct tap drill size for 1/8-27 NPTF before tapping, and apply cutting fluid appropriate for the workpiece material. Secure the workpiece fully before starting the thread to prevent movement. Back the tap out periodically to break and clear chips, especially in blind holes.