BOSTITCH 16-021 Pin Punch Set, 6-Piece Set includes 1/16-Inch, 5/32-Inch, 5/16-Inch, 1/4-Inch, 3/16-Inch, and 1/8-Inch punches Used for drilling holes One-piece construction forged from tempered tool steel for strength Hardened and tempered for long life Powder coat for increased visibility