Kennametal 1545228 Pipe Tap 1/16-27 Npt 4 Flute Hss Tin

Product Description

The KENNAMETAL 1545228 is a standard NPT pipe tap designed to cut internal tapered pipe threads in metal workpieces. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it produces 1/16-27 NPT threads used in fluid and gas line fittings across plumbing, HVAC, and industrial piping systems. The TiN finish increases surface hardness and reduces friction, extending tool life in production and maintenance environments. With 4 flutes and a regular hook, this tap suits hand tapping and machine tapping operations on ferrous and nonferrous metals. Overall length is 2.13 inches and thread length is 0.688 inches.

This tap is used wherever 1/16-27 NPT threaded connections are required, including small-diameter pipe and fitting applications in residential and light commercial plumbing, HVAC refrigerant line accessories, pneumatic fittings, and instrumentation ports. It is appropriate for both shop fabrication and field repair work performed by licensed plumbers, pipefitters, HVAC technicians, and machinists who need a reliable, close-tolerance pipe thread in tight spaces.

Key Features

• 1/16-27 NPT thread form for standard tapered pipe thread connections
• High-speed steel construction for durability in ferrous and nonferrous materials
• Titanium nitride (TiN) coating reduces friction and extends tool life
• 4 flutes with regular hook for controlled chip evacuation
• Compact overall length of 2.13 inches suits confined-space tapping
• Shank diameter of 0.313 inches and square size of 0.234 inches for standard tap wrench or chuck fitment

Compatibility

Designed as an OEM-style tooling replacement for standard 1/16-27 NPT pipe tapping applications in hand-tapping and machine-tapping setups using compatible tap wrenches or chucks sized for a 0.313-inch shank diameter.

Installation Notes

This tap should be installed and operated by qualified machinists, pipefitters, or HVAC technicians familiar with thread-cutting practices. Use appropriate cutting fluid for the base material to prevent galling and extend tap life. Secure the workpiece firmly before tapping and align the tap perpendicular to the drilled hole to avoid thread distortion or tap breakage. Follow shop safety procedures and applicable standards for thread-cutting operations.