Hertel R867366-S Bsp Pipe Tap 1/8-28 4 Flute Hss

Product Description

The HERTEL R867366-S is a British Standard Pipe tap designed to cut 1/8-28 G (BSP) internal threads in metal workpieces. Built from high speed steel with a bright finish, this plug-chamfer tap features 4 flutes and a regular hook for consistent chip evacuation during threading operations. At 2.125 inches overall length with a 0.75-inch thread length, it fits standard tap handles and threading equipment used in plumbing, HVAC, and industrial maintenance. The plug chamfer provides a balance between starting ease and thread engagement, making it suitable for through-holes and moderately deep blind holes. Licensed tradespeople and machinists reach for this tap when creating BSP-compatible threaded ports on fittings, manifolds, and pipe assemblies.

The R867366-S is used in applications requiring G (BSP) parallel pipe threads, common in plumbing systems, hydraulic assemblies, HVAC equipment, and instrumentation fittings manufactured to British or international standards. It is appropriate for threading ferrous and non-ferrous metals encountered in residential and commercial mechanical installations. Typical scenarios include tapping new ports in pipe flanges, valve bodies, and control components during fabrication or field repair work.

Key Features

• 1/8-28 G (BSP) thread form for British Standard Pipe parallel thread compatibility
• High speed steel construction for durability in ferrous and non-ferrous metals
• Plug chamfer style balances easy thread starting with strong thread engagement
• 4-flute design promotes efficient chip removal during cutting
• Bright finish for corrosion resistance and reduced friction during use
• Regular hook geometry suits general-purpose tapping applications

Compatibility

Designed for use in applications requiring 1/8-28 G (BSP) parallel pipe threads per British Standard specifications. Fits standard tap wrenches and machine tap holders accepting this shank size.

Installation Notes

This tap is installed by licensed machinists, pipefitters, or HVAC technicians using a standard tap wrench or tapping machine. Ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for 1/8-28 BSP threads before starting. Apply cutting fluid appropriate for the workpiece material to extend tool life and improve thread quality. Back the tap out periodically to break chips and clear flutes, particularly in deeper holes.