Guhring 9039090020000 Spiral Flute Tap M2 X 0.40 Tin

Product Description

The GUHRING 9039090020000 is a spiral flute tap designed for blind hole threading in demanding materials. It cuts an M2 x 0.40 Metric Coarse thread to a 6H class of fit with a D3 thread limit. Manufactured from powdered metal and coated with a titanium nitride (TiN) finish, this tap delivers heat and wear resistance necessary for work in aerospace alloys and stainless steel. The modified bottoming chamfer allows threading close to the bottom of a blind hole. With a 40-degree helix angle, the flute design evacuates chips efficiently in difficult-to-machine materials. Overall length is 1.752 inches. This is a right-hand flute, right-hand thread tool from GUHRING Series 3909.

This tap is suited for precision blind hole threading in aerospace alloys and stainless steel. The 40-degree fast-spiral flute geometry promotes chip ejection upward and away from the cutting zone, reducing the risk of chip packing in stopped bores. It is appropriate for use in CNC machining centers, manual mills, and tapping machines where M2 x 0.40 Metric Coarse threads are required. Machinists and tooling technicians working in aerospace, defense, and precision manufacturing will find this tool well matched to close-tolerance thread requirements.

Key Features

• M2 x 0.40 Metric Coarse thread form, 6H class of fit, D3 thread limit
• Modified bottoming chamfer for threading near the base of blind holes
• 40-degree fast-spiral flute angle for upward chip evacuation in tough alloys
• Powdered metal construction for increased hardness and wear resistance
• TiN coating extends tool life in stainless steel and aerospace alloy applications
• Right-hand thread and right-hand flute, 3-flute design

Compatibility

Designed for blind hole threading in aerospace alloys and stainless steel where an M2 x 0.40 Metric Coarse thread form and 6H class of fit are specified.

Installation Notes

This tap should be installed and operated by qualified machinists or tooling technicians familiar with tap selection and thread-cutting procedures. Power down or disengage the spindle completely before mounting or removing the tap from the holder. Use appropriate cutting fluid rated for the workpiece material, particularly when threading stainless steel or aerospace alloys, to prevent galling and premature tool wear. Verify spindle alignment before running to avoid tap breakage in small-diameter blind holes.