Value Collection MSC-04663043 Pipe Tap 3/8-18 Npt Hss

Product Description

The VALUE COLLECTION MSC-04663043 is a 3/8-18 NPT interrupted thread pipe tap manufactured from high-speed steel with a bright, uncoated finish. Interrupted thread geometry reduces cutting friction and helps clear chips more efficiently during tapping operations, making it a practical choice for threading pipe fittings in iron, steel, and similar ferrous materials. The tap measures 2.5625 inches in overall length with a 0.7 inch shank diameter and a 1.0625 inch thread length. A 0.531 inch square drive size accommodates standard tap wrenches and machine holders. Five flutes provide good chip evacuation across a range of workpiece materials.

This pipe tap is suited for threading 3/8-18 NPT tapered pipe threads in both shop and field applications. Typical uses include fabricating or reworking threaded connections in pipe fittings, manifolds, hydraulic blocks, and similar components. Licensed plumbers, pipefitters, and machinists commonly use this tool when cutting new threads or chasing existing NPT threads in metal workpieces. The interrupted thread design is particularly useful when working with tougher materials or when chip packing is a concern in blind or semi-blind applications.

Key Features

• 3/8-18 NPT tapered thread form for standard pipe fitting connections
• Interrupted thread geometry improves chip clearing and reduces torque
• High-speed steel construction provides good wear resistance for ferrous materials
• Bright uncoated finish allows easy inspection of cutting edges
• 5 flutes for efficient chip evacuation
• Regular hook for controlled cutting action in a range of materials

Compatibility

Designed for cutting 3/8-18 NPT tapered pipe threads and is compatible with standard tap wrenches and machine tap holders accepting a 0.531 inch square drive.

Installation Notes

This tap is installed and operated by machinists, pipefitters, or licensed plumbers using a tap wrench or machine holder. Always secure the workpiece before tapping and use a cutting fluid appropriate for the base material to extend tool life and improve thread quality. Follow applicable codes such as IFGC or IPC when threading connections in gas or potable water systems. Inspect cutting edges before use and do not force a worn or damaged tap.