There's nothing worse than trying to connect one piece of plywood to another with dadoes or grooves that are 1/32" or more wider than the plywood that goes into them. They are for use with 3/4",1/2" & 1/4" plywood.

Cutting Diameter 7/32"

Cutting Length 3/4"

Overall Length 2-1/2"

Shank Diameter 1/2"