Guhring 9039150120000 Spiral Point Tap M12x1.75 Tin Hss-e

Product Description

The GUHRING 9039150120000 is a spiral point tap designed for through-hole threading in metric applications. It cuts an M12x1.75 thread profile to a 6H class of fit with a D5/D6 thread limit, making it suitable for close-tolerance work in steel components. The tap is manufactured from HSS-E cobalt high-speed steel and finished with a titanium nitride (TiN) coating, which reduces friction and extends tool life in demanding production environments. With a plug chamfer, 4 flutes, and right-hand thread direction, it drives chips forward through the hole during cutting. Licensed machinists and toolroom technicians specify this tap for production threading operations where dimensional accuracy and tool longevity are priorities.

This tap is built for through-hole threading in steel workpieces, covering general manufacturing, maintenance, and repair applications. The M12x1.75 metric thread size is one of the most common fastener dimensions in industrial and automotive assemblies. It is suited for use in manual tapping, CNC machining centers, and drill press setups where the workpiece material is steel. The plug chamfer style provides a moderate lead-in with 3 to 5 chamfered threads, balancing starting ease with thread engagement length. No coolant-through feature is present, so external or flood coolant should be directed at the cutting zone during use.

Key Features

• M12x1.75 metric thread, 6H class of fit for standard tolerance threading
• HSS-E cobalt construction for improved heat and wear resistance in steel
• TiN coating reduces friction and extends cutting tool service life
• Plug chamfer with 4 flutes for efficient chip evacuation in through-holes
• Right-hand cut, D5/D6 thread limit for consistent dimensional output
• Overall length of 3.382 inches with a thread length of 1.4173 inches

Compatibility

Designed for through-hole threading of steel workpieces requiring an M12x1.75 metric thread to a 6H class of fit. Suitable for use with standard M12 tap holders and quick-change tapping chucks that accept the 0.3670-inch shank diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician familiar with tapping operations and speeds for HSS-E tooling in steel. Ensure the workpiece is securely fixtured and the correct pilot hole diameter for M12x1.75 metric threads has been drilled before tapping. Apply cutting fluid appropriate for the workpiece material to reduce heat buildup and protect the TiN coating. Do not reverse the tap under load without confirming that the setup is designed for reversing; use a tapping attachment with torque control when possible to prevent tap breakage.