Guhring 9039160127000 Spiral Point Tap 1/2-13 Unc

Product Description

The GUHRING 9039160127000 is a spiral point tap designed for through-hole threading in steel and similar ferrous materials. Built from HSS-E cobalt high-speed steel and finished with a titanium nitride (TiN) coating, this tap delivers extended tool life and improved wear resistance in production threading applications. It is ground to a 2B class of fit with an H5/H6 thread limit, making it suitable for standard tolerance internal threads. The 4-flute spiral point geometry pushes chips forward through the hole, keeping the cutting zone clear during machine tapping operations. Overall length is 3.382 inches with a thread length of 0.984 inches.

This tap is intended for through-hole threading at 1/2-13 UNC in steel workpieces. It is commonly used in CNC machining centers, drill presses, and tapping machines in manufacturing, maintenance, and fabrication environments. The plug chamfer style requires adequate material depth for thread lead-in and is the standard choice for through-hole applications where the tap can pass completely through the part. Machinists, tool and die makers, and maintenance technicians are the typical end users.

Key Features

• HSS-E cobalt construction for improved heat and wear resistance in steel threading
• TiN coating reduces friction and extends tool life in production runs
• Spiral point geometry drives chips forward, ideal for through-hole applications
• Plug chamfer with 4 flutes for balanced cutting action and thread lead-in
• H5/H6 thread limit ground to 2B class of fit for standard tolerance threads
• Right-hand thread direction, no coolant-through requirement

Compatibility

Designed for through-hole threading of 1/2-13 UNC right-hand internal threads in steel. Suited for use in GUHRING Series 3916 application requirements where a spiral point plug tap with TiN coating is specified.

Installation Notes

This tap should be installed in a rigid tapping chuck or floating tap holder appropriate for the machine spindle in use. Secure the workpiece firmly before beginning the tapping cycle and ensure the pilot hole diameter is correct for a 1/2-13 UNC thread before starting. Apply a suitable cutting fluid or tapping compound for steel to maintain tool life and thread quality. Inspect the tap for wear or chipping before each use and never reverse a broken tap under power.