Hertel K015153AS 1/2-13 Unc Plug Pulley Tap Hss H3

Product Description

The HERTEL K015153AS is a 1/2-13 UNC plug-style hand pulley tap manufactured from high speed steel with a bright finish. Designed for threading operations in ferrous and non-ferrous materials, this 4-flute tap features an H3 thread limit for close-tolerance fits and an overall length of 8 inches with a 0.507-inch shank diameter. The plug chamfer provides a gradual thread start, making it suitable for through-hole and deep-thread applications. Machinists, tool and die makers, and maintenance technicians use this tap when hand-tapping or machine-tapping 1/2-13 UNC threads in production or repair settings.

This tap is suited for use in general metalworking shops, maintenance and repair facilities, and light manufacturing environments. The 1/2-13 UNC thread form is a common coarse-thread fastener size used across structural, mechanical, and equipment assembly applications. The 4-flute design provides good chip clearance and thread quality in both ferrous materials such as steel and cast iron and softer non-ferrous metals. Its bright finish makes it appropriate for use with standard cutting fluids.

Key Features

• 1/2-13 UNC coarse thread form for high-strength fastener applications
• 4-flute design promotes chip clearance and threading accuracy
• Plug chamfer allows gradual thread engagement for through-hole and deep-hole use
• H3 thread limit supports close-tolerance fits
• High speed steel construction provides wear resistance in general metalworking
• Bright finish compatible with standard cutting fluids and lubricants

Compatibility

Designed as an OEM-style replacement or direct-use tap for standard 1/2-13 UNC hand and machine tapping operations in general metalworking and maintenance applications.

Installation Notes

This tap should be installed in a proper tap wrench or machine tap holder rated for the shank diameter before use. Always apply an appropriate cutting fluid for the material being threaded to reduce friction and extend tool life. Ensure the workpiece is securely clamped and the tap is started square to the hole to prevent tap breakage. Reverse the tap periodically during hand tapping to break chips and clear the flutes.