Guhring 9039670041660 Spiral Point Tap 8-32 Unc Cobalt

Product Description

The GUHRING 9039670041660 is a spiral point tap designed for right-hand through-hole threading in 8-32 UNC at 32 threads per inch. Built from HSS-E cobalt steel and finished with a MolyGlide coating, this tap resists heat and wear during high-speed tapping operations. It features a plug chamfer and 3 flutes with an H3/H4 thread limit, producing a 2B class of fit. Overall length is 2.13 inches with a thread length of 0.827 inches and a shank diameter of 0.168 inches. Machinists and maintenance technicians use this tap for production and repair threading in non-ferrous metals.

This tap is suited for through-hole threading applications in non-ferrous metal workpieces such as aluminum, brass, and copper alloys. The spiral point geometry pushes chips forward ahead of the cutting edge, making it effective in blind-ended through-holes where chip evacuation is critical. It is a fit for CNC tapping centers, drill presses, and hand-tapping operations where consistent 8-32 UNC thread quality is required. The plug chamfer provides a gradual lead-in, reducing tap breakage risk at the start of the cut.

Key Features

• HSS-E cobalt construction for improved heat and wear resistance over standard HSS
• MolyGlide coating reduces friction and extends tool life in non-ferrous materials
• Spiral point geometry pushes chips forward for efficient through-hole threading
• Plug chamfer with 3 flutes produces consistent 2B class of fit threads
• H3/H4 thread limit for close tolerance control on 8-32 UNC threads
• Right-hand cut, no coolant-through requirement

Compatibility

Designed for through-hole threading of 8-32 UNC threads in non-ferrous metal applications. Compatible with standard tap holders and collet chucks sized for a 0.168-inch shank diameter.

Installation Notes

This tap is installed and operated by machinists and maintenance technicians using standard tapping equipment. Secure the shank in a properly sized tap holder or collet chuck before use. Ensure the workpiece is fixtured and the hole is drilled to the correct tap drill diameter for 8-32 UNC before starting. Use appropriate tapping fluid for the workpiece material and do not exceed the tap's rated capacity to avoid breakage.