Guhring 9039960031750 Spiral Point Tap 5-40 Unc Tin

Product Description

The GUHRING 9039960031750 is a spiral point tap designed for through-hole threading operations in demanding materials including stainless steel. Built from powdered metal and finished with a titanium nitride (TiN) coating, this tap delivers extended wear resistance and reduced friction during cutting. It is configured as a plug chamfer, 3-flute design with a right-hand thread direction, and carries a 3B class of fit with an H2 thread limit. The overall length is 1.941 inches and the shank diameter is 0.141 inches. Machining professionals and tool-crib operators in production shops rely on this tap for consistent thread quality in through-hole applications.

This tap is suited for through-hole threading in ferrous and stainless steel workpieces across production machining, maintenance, and fabrication environments. The 5-40 UNC thread size is a common fastener specification found in precision instruments, small mechanical assemblies, and electronic enclosures. The plug chamfer makes it appropriate for starting threads from a drilled hole without requiring a taper entry tap first. It is sold individually and fits standard tap holders and CNC tapping chucks that accept the 0.141-inch shank diameter.

Key Features

• Powdered metal construction for superior hardness and wear resistance compared to standard HSS
• TiN coating reduces friction and extends tool life in stainless steel and ferrous materials
• Spiral point geometry pushes chips forward ahead of the tap, keeping the flutes clear in through-hole applications
• Plug chamfer allows direct entry into a drilled through-hole without a taper tap
• H2 thread limit and 3B class of fit ensure consistent tolerance compliance for precision assemblies
• Right-hand thread direction compatible with standard tapping machines, CNC machining centers, and hand tap wrenches

Compatibility

Designed for through-hole threading in stainless steel and similar materials. Fits standard tap holders accepting a 0.141-inch shank diameter. Part of GUHRING Series 3997.

Installation Notes

This tap should be installed and operated by qualified machinists familiar with tapping procedures and speeds appropriate for the workpiece material. Always ensure the tap is properly aligned with the drilled hole before applying torque to avoid tap breakage. Use a cutting fluid or tapping compound rated for stainless steel to reduce heat buildup and extend tool life. When using in a CNC machining center, confirm synchronization between spindle speed and feed rate before initiating the tapping cycle.