332-730BB-1-1/4 Features: -Round Standard Metal Punch Units are complete units consisting of punch, die and draw stud. -Use with manual, ratchet, hydraulic or battery-powered drivers. -Properly assembled through pilot holes, they will make clean, fast and accurate holes. -Applicable Materials: Mild Steel. Product Type: -Punches. Dimensions: Overall Product Weight: -0.65 Pounds.