Value Collection MSC-04674032 Extension Pipe Tap 1/4-18 Npt

Product Description

The VALUE COLLECTION MSC-04674032 is a 1/4-18 NPT extension pipe tap designed for cutting internal tapered pipe threads in ferrous and non-ferrous materials. Built from high-speed steel (HSS) with a bright uncoated finish, this tap delivers reliable thread-cutting performance in standard pipe threading applications. The plug chamfer style provides a gradual thread lead-in, making it well suited for through-hole tapping. With a 4-inch overall length and 4 flutes, this extension tap reaches threading locations that standard-length taps cannot access, making it a practical tool for maintenance, fabrication, and installation work across plumbing, HVAC, and industrial piping trades.

This extension pipe tap is used in applications requiring 1/4-18 NPT tapered pipe threads, including fitting installations, valve bodies, manifolds, and instrumentation ports. The extended shank allows access in recessed bores or confined assemblies where a standard tap would bottom out before reaching the thread zone. It is appropriate for both hand tapping and low-speed machine tapping setups in shop or field environments.

Key Features

• 1/4-18 NPT thread form for standard tapered pipe thread cutting
• Plug chamfer with gradual lead-in for smooth thread engagement in through-hole applications
• 4-flute design for efficient chip evacuation during tapping
• High-speed steel construction provides durability across a range of workpiece materials
• Bright uncoated finish suitable for use with standard cutting fluids
• Extended 4-inch overall length reaches recessed or obstructed thread locations

Compatibility

Designed for cutting 1/4-18 NPT tapered pipe threads in applications requiring an extension-length tap; compatible with standard tap wrenches and low-speed tapping equipment accepting the corresponding shank diameter.

Installation Notes

This tap should be installed and operated by machinists or trade professionals familiar with pipe thread cutting procedures. Always use an appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Secure the workpiece firmly before tapping and ensure the tap is started square to the bore to prevent cross-threading or tap breakage. Reverse the tap periodically during hand tapping to break and clear chips.