Guhring 9039270120000 Spiral Point Tap M12x1.75 Tin Hss-e

Product Description

The GUHRING 9039270120000 is a spiral point tap designed for through-hole threading in non-ferrous metal applications. Part of the Series 3927 line, it cuts an M12x1.75 metric thread to a 6H class of fit with a D5/D6 thread limit. The plug chamfer provides a gradual lead-in suitable for through-hole work, and the three-flute geometry pushes chips forward ahead of the cutting action to keep the flutes clear. The tap is manufactured from HSS-E cobalt steel and finished with a TiN (titanium nitride) coating for improved wear resistance and tool life. Overall length is 3.382 inches with a thread length of 1.4173 inches and a shank diameter of 0.367 inches.

This tap is suited for threading through-holes in non-ferrous metals such as aluminum, brass, and copper alloys. The spiral point design makes it a reliable choice for production environments and job-shop applications where chip evacuation is a priority. The right-hand cut and standard M12x1.75 pitch match the most common metric fastener specification at that diameter, making it a frequent choice for machine components, fixtures, and structural assemblies that require a clean, accurate metric thread.

Key Features

• M12x1.75 metric thread, 6H class of fit, D5/D6 thread limit for precise tolerance control
• Spiral point geometry pushes chips forward, optimized for through-hole applications
• HSS-E cobalt base material provides toughness and heat resistance over standard HSS
• TiN coating reduces friction and extends tool life in non-ferrous metal cutting
• Plug chamfer for gradual thread engagement and reduced torque on lead-in
• Right-hand cut, no coolant-through, no interrupted thread design

Compatibility

Designed for through-hole threading operations in non-ferrous metal workpieces requiring an M12x1.75 metric thread to a 6H class of fit. No specific machine or equipment compatibility data was provided in the product input.

Installation Notes

This tap is installed and operated by machinists and tool-and-die professionals using a tapping head, CNC machine, or hand tap wrench. Before use, confirm the correct tap drill diameter for M12x1.75 is used to prepare the through-hole. Apply an appropriate cutting fluid for non-ferrous metals to promote chip flow and protect the TiN coating. Never force a tap against a bottomed hole or reverse direction abruptly, as this can fracture the tool.