Adjust from 1″ to 6″ diameter circles. Square shank. Replaceable 3/16″ high-speed steel bit and 1/4″ pilot drill. Made of heat-treated tool steel. For use in drill press, drill stand, or bit brace. Hex wrench included.
For cutting circles in sheet metal, mild steel, hardboard, plywood, brass, copper, etc. Combination 1/4″ round and square shank permits it to be used in either drill chuck or hand brace. For circles 7/8″ to 4″ in diameter.