Hertel 87006 Plug Hand Tap 3/8-24 Unf 4 Flute Hss

Product Description

The HERTEL 87006 is a plug-style hand tap designed for threading 3/8-24 UNF internal threads in a wide range of metalworking applications. Built from high speed steel with a bright finish, this tap features a 4-flute, right-hand configuration and an H3 thread limit for controlled tolerance fits. The overall length is 6 inches. The plug chamfer — typically 3 to 5 threads — makes it suitable for through-holes and the starting phase of blind-hole threading after a taper tap has been used. Machinists and maintenance technicians reach for this style when chasing existing threads or cutting new threads by hand or in a manual tapping fixture.

This tap fits into standard hand tapping operations across job shops, maintenance and repair environments, and light manufacturing. It is appropriate for threading steel, aluminum, brass, and similar materials where a 3/8-24 UNF thread form is required. The 4-flute design provides good chip clearance in through-hole applications and stable cutting geometry on hand-tapping work. It is packaged individually and sold as a single unit.

Key Features

• 3/8-24 UNF thread form for fine-pitch unified national thread applications
• 4-flute, right-hand spiral for balanced cutting and chip evacuation
• H3 thread limit for standard tolerance fits on mating fasteners
• High speed steel construction for durability across common ferrous and non-ferrous materials
• Bright finish with no coating — suitable for use with cutting fluid on most materials
• 6-inch overall length accommodates standard tap wrenches and tapping fixtures

Compatibility

Designed as an OEM-style replacement or standard service tap for any application requiring a 3/8-24 UNF plug hand tap in high speed steel with an H3 thread limit.

Installation Notes

This tap is intended for use by machinists, tool-and-die technicians, and maintenance professionals performing hand-tapping operations. Always secure the workpiece before tapping and use an appropriate cutting fluid to reduce heat and extend tool life. Back the tap out periodically to break chips and prevent binding, especially in blind holes. Follow all applicable shop safety guidelines for rotating cutting tools and sharp-edged workholding setups.