Guhring 9039160158750 Spiral Point Tap 5/8-11 Unc

Product Description

The GUHRING 9039160158750 is a spiral point tap designed for right-hand through-hole threading in steel. It cuts a 5/8-11 UNC thread profile with a plug chamfer, which distributes cutting load across the leading threads and suits through-hole applications. The tap is manufactured from HSS-E cobalt high-speed steel for added heat and wear resistance, and carries a titanium nitride (TiN) coating that further extends tool life in ferrous materials. With a 2B class of fit and an H5/H6 thread limit, it produces threads within the tolerances required for most standard fastener assemblies. Machinists and maintenance techs install this tap in drill presses, CNC machining centers, and hand-tapping setups.

This tap is suited for through-hole threading operations in steel workpieces at the 5/8-11 UNC thread size. The plug chamfer makes it appropriate for both production runs and maintenance repair work where a through-hole is accessible. The 4-flute spiral point geometry pushes chips forward ahead of the cutting action, reducing chip packing in the hole. It fits standard 5/8-11 tap holders and collets with a 0.48 inch shank diameter. Typical applications include fabrication shops, machine shops, and field maintenance environments working with structural steel components and steel assemblies.

Key Features

• 5/8-11 UNC thread form with plug chamfer for through-hole threading
• 4-flute spiral point geometry pushes chips forward to reduce packing
• HSS-E cobalt construction provides heat resistance in steel cutting
• TiN coating extends tool life and reduces friction at the cutting edge
• H5/H6 thread limit meets 2B class of fit tolerances
• Right-hand cut, no coolant-through requirement, non-interrupted thread design

Compatibility

Designed for through-hole threading in steel using standard 5/8-11 UNC tap holders, collets, or tapping heads compatible with a 0.48 inch shank diameter.

Installation Notes

A licensed machinist or experienced maintenance technician should install this tap using a properly sized tap holder or tapping head rated for the 5/8-11 thread size. Ensure the workpiece is securely fixtured and the spindle is aligned with the pilot hole before engagement. Apply cutting fluid appropriate for steel to reduce heat buildup and extend tap life. Never reverse a spiral point tap under power without confirming the holder is designed for reversing operation.