Guhring 9039010158750 Spiral Point Tap 5/8-11 Unc

Product Description

The GUHRING 9039010158750 is a spiral point tap designed for right-hand through-hole threading in a 5/8-11 UNC configuration. Built from HSS-E cobalt high-speed steel with a bright uncoated finish, this tap is engineered for cutting internal threads in steel applications. It carries a plug chamfer for standard entry and is ground to a 2B class of fit with an H5/H6 thread limit for consistent dimensional accuracy. Overall length is 3.811 inches with a thread length of 1.181 inches, making it suited for production and maintenance threading where controlled fit and tool life are priorities. Licensed machinists and toolroom technicians are the primary installers of this tool.

This tap is intended for through-hole threading operations in steel at a 5/8-11 UNC pitch. The spiral point geometry pushes chips forward ahead of the tap, making it well suited for use in CNC machining centers, turret lathes, and manual tapping operations where chip evacuation into the through-hole is acceptable. It is part of the GUHRING Series 3901 and is appropriate for both production floor and job-shop environments requiring consistent 2B thread tolerances in ferrous materials.

Key Features

• HSS-E cobalt material for improved wear resistance and heat tolerance when threading steel
• Spiral point geometry pushes chips forward, optimizing through-hole threading efficiency
• Plug chamfer provides standard thread entry suitable for most production applications
• 2B class of fit with H5/H6 thread limit for controlled dimensional accuracy
• Bright uncoated finish — no coating buildup to affect thread tolerance
• Right-hand thread direction, 3 flutes, no coolant-through requirement

Compatibility

Designed for through-hole threading applications in steel at 5/8-11 UNC. Compatible with standard tap holders, floating tap chucks, and rigid tapping setups that accept a 0.480-inch shank diameter.

Installation Notes

This tool is installed and operated by machinists, toolroom technicians, or CNC programmers. Ensure the workpiece is securely fixtured and the tapping spindle is properly aligned before engagement. Use appropriate cutting fluid for steel to extend tool life and maintain thread quality. Always follow shop safety procedures and applicable OSHA machining standards when operating tapping equipment.