Made from Tool Steel.
Plugs are very slightly tapered.
Recommended for use with a pillar drill.
Use on timber to make plugs/pellets to plug screw holes

Specification:
Shank Diameter=1/4 inch hex
Plug size=5/8 inch
Plug size=15.9 mm
Taper range approx.=15.8 to 16.1 mm
Outside diameter=22 mm