Features:
• Includes 3 sizes: 5/16", 3/8" and 1/2"
• Unique, patented self-centering design with 2-point cutting blades and retractable guide pin
• Precision CNC machined high-alloy steel with black oxide finish
• Impact drill/driver compatible hex shank includes innovative anti-skate design
• Cuts accurate size tapered plugs for tight fit and finish