Regal Cutting Tools 015730AS Bspt Pipe Tap 1/8-28

Product Description

The REGAL CUTTING TOOLS 015730AS is a British Standard Pipe Taper (BSPT) hand tap designed to cut 1/8-28 internal pipe threads in metal workpieces. It features a plug chamfer, which provides a moderate lead-in of approximately 3-5 threads, making it suited for through-hole threading applications. Manufactured from high speed steel (HSS) with a bright finish, the 015730AS delivers reliable thread-cutting performance in ferrous and non-ferrous materials. The 4-flute design provides chip clearance and stable cutting action during tapping operations. Plumbers, pipefitters, and mechanical service technicians use this tap when fabricating or repairing BSPT-threaded fittings and connections.

This tap is used when cutting 1/8-28 BSPT internal threads in pipe fittings, manifolds, valve bodies, and other components that require British Standard Pipe Taper thread form. BSPT threads are a tapered pipe thread standard common in plumbing and fluid power systems outside of North America, as well as in imported equipment and instrumentation found in industrial and commercial service environments. It is well suited to both shop fabrication and field repair work where BSPT thread compatibility is required.

Key Features

• 1/8-28 BSPT thread size for British Standard Pipe Taper applications
• Plug chamfer entry for through-hole threading with moderate lead-in
• 4-flute configuration for chip evacuation and cutting stability
• High speed steel construction for durability across ferrous and non-ferrous materials
• Bright finish with no coating to allow direct inspection of cutting edges

Compatibility

Designed for cutting 1/8-28 BSPT internal pipe threads in compatible workpiece materials; verify thread standard requirements before use, as BSPT is not interchangeable with NPT or BSP parallel thread forms.

Installation Notes

This tap is installed by plumbers, pipefitters, and machinists using a standard tap wrench or tapping fixture. Always use appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Secure the workpiece firmly before tapping, and advance the tap with consistent, controlled pressure while backing off periodically to break chips. Never force the tap against obstruction, as HSS taps are susceptible to breakage under torsional overload.