Guhring 9039760100000 Spiral Flute Tap M10 X 1.50

Product Description

The GUHRING 9039760100000 is a spiral flute tap designed for blind hole threading in metric coarse applications. It cuts an M10 x 1.50 thread to a 6H class of fit and features a bottoming chamfer for threading close to the bottom of a blind bore. The tap is manufactured from cobalt high-speed steel and carries a TiN coating to extend tool life in abrasive materials. With a 40-degree helix angle and fast flute style, it evacuates chips efficiently in interrupted or deep blind hole cuts. Overall length is 2.941 inches. Licensed machinists and toolroom technicians are the primary installers.

This tap is suited for threading blind holes in alloyed steel and unalloyed steel workpieces. The bottoming chamfer geometry allows threads to be cut within one to two pitches of the hole bottom, making it appropriate for close-tolerance assemblies where thread depth is critical. The 3-flute, right-hand spiral flute configuration with right-hand thread direction is standard for CNC machining centers, drill presses, and manual tapping operations in job shop and production environments.

Key Features

• Bottoming chamfer for threading to the bottom of blind holes
• Cobalt HSS construction for improved heat and wear resistance in steel alloys
• TiN coating extends tool life and reduces friction during cutting
• 40-degree helix angle promotes efficient chip evacuation in blind hole applications
• 6H class of fit meets standard metric tolerance requirements
• D4 and D5 thread limit range for consistent thread accuracy

Compatibility

Designed for blind hole threading in alloyed steel and unalloyed steel. Part of GUHRING Series 3976. Compatible with standard tapping chucks and tap holders accepting a 0.381-inch shank diameter with a 0.286-inch square drive.

Installation Notes

This tap should be installed by a qualified machinist familiar with tapping feeds, speeds, and cutting fluid requirements for cobalt tooling in steel. Ensure the spindle is fully stopped and the workpiece is securely fixtured before tool changes. Use an appropriate cutting fluid or tapping compound rated for steel to maximize tool life and thread quality. Do not exceed recommended feed rates for the M10 x 1.50 thread pitch, and verify hole depth provides adequate chip clearance before tapping.