Our SHOCKWAVE™ 5/16" -18 UNC Impact Drill Tap drills and taps at the same time. The bit features 18 threads per inch and is intended for use in up to 1/4" metal. The laser-etched size allows for easy size identification. The bit is designed for use in Impact Drivers & Drill Drivers.
Features a countersink
Laser Etched Size for easy size identification
1/4" Quick Change Hex Shank
Designed for use in Impact Drivers and Drill Drivers