Reiff Nestor 99664 Pipe Tap 1/16-27 Npt Hss Blue Diamond

Product Description

The REIFF NESTOR 99664 is a standard NPT pipe tap designed for cutting internal tapered threads in pipe fittings, valves, and threaded ports across plumbing, HVAC, and mechanical installations. Built from high-speed steel with a Blue Diamond finish, this tap handles 1/16-27 NPT threading with a 4-flute configuration that promotes chip evacuation and consistent thread formation. The thread length measures 11/16 inches, and the shank diameter is 0.3125 inches. At 0.04 pounds, it is a compact, precision cutting tool suited for tight access points common in pipe fitting work.

This tap is used in residential and commercial applications wherever 1/16-27 NPT internal threads must be cut or chased. Typical scenarios include threading ports in manifolds, valve bodies, and pipe fittings made of steel, cast iron, or similar metals. Plumbers, pipefitters, HVAC technicians, and mechanical contractors reach for this tap when fabricating or repairing threaded connections in gas, water, or refrigerant piping systems.

Key Features

• 1/16-27 NPT thread specification for tapered pipe thread applications
• High-speed steel construction for durability across ferrous and non-ferrous materials
• Blue Diamond finish reduces friction and extends tool life
• 4-flute design promotes chip clearance and accurate thread cutting
• 11/16 inch thread length with 0.3125 inch shank diameter for secure chuck seating
• Compact 0.04 pound weight suited for handheld or machine tapping operations

Compatibility

Designed for cutting standard 1/16-27 NPT internal tapered pipe threads in ferrous and non-ferrous base materials. Verify thread standard and material compatibility before use.

Installation Notes

This tap should be installed and operated by qualified plumbers, pipefitters, or machinists familiar with thread-cutting procedures. Before tapping, drill the correct tap drill size for 1/16-27 NPT and apply appropriate cutting fluid to reduce heat and prolong tool life. Follow IFGC or IPC guidelines when threading ports in gas or water piping systems. Never force the tap if resistance increases sharply, as this can result in breakage inside the workpiece.