Guhring 9039060040000 Spiral Point Tap M4 X 0.7 Metric Coarse

Product Description

The GUHRING 9039060040000 is a spiral point tap designed for right-hand, through-hole threading in M4 x 0.7 Metric Coarse applications. Built from powdered metal and coated with TiN (titanium nitride), it delivers extended tool life and reduced friction during cutting. The plug chamfer makes it well suited for through-hole work where the tap can advance smoothly into the material. With a thread limit of D3/D4 and a class of fit of 6H, this tap produces accurate, tolerance-controlled threads. It is a solid choice for shops and field technicians working with aerospace alloys and stainless steel where tool wear and thread quality are critical concerns.

This tap is intended for through-hole threading operations in aerospace alloys and stainless steel. The 3-flute geometry and spiral point design push chips forward ahead of the tap, keeping flutes clear during production runs. The TiN coating provides hardness and lubricity that are especially valuable when threading these harder, work-hardening materials. It fits standard tap holders sized for a 0.168-inch shank diameter and is packaged and sold individually. Suitable for both CNC machining centers and manual tapping operations in job shop, MRO, and aerospace production environments.

Key Features

• M4 x 0.7 Metric Coarse thread form with right-hand cutting direction
• Plug chamfer geometry optimized for through-hole threading applications
• Powdered metal construction for improved wear resistance over standard HSS
• TiN coating reduces friction and extends tool life in stainless steel and aerospace alloys
• 3-flute spiral point design pushes chips forward to prevent flute packing
• Thread limit D3/D4, class of fit 6H for precise tolerance control

Compatibility

Rated for use in aerospace alloy and stainless steel workpieces. Compatible with standard tap holders and collet chucks sized for a 0.168-inch shank diameter. Designed for through-hole threading only; not intended for blind-hole applications.

Installation Notes

This tap should be installed by a qualified machinist or tool-and-die technician. Ensure the spindle and workpiece are properly secured before beginning any tapping operation. Use a cutting fluid or tapping compound appropriate for stainless steel or aerospace alloys to protect the coating and extend tool life. Do not reverse the tap under power until it has fully cleared the hole, and inspect thread form periodically when running production quantities.