14-Piece All-Purpose Punch Set, including 8-Piece Brass Drive Pin Punch Set. Includes 5-Piece Long Drive Pin Punch Set. Automatic Centre Punch. 8-Piece Brass Drive Pin Punch Set. Brass Punch Set Sizes: 1/16"/1.6mm, 3/32"/2.4mm, 1/8"/3.2mm, 5/32"/4mm, 3/16"/4.8mm, 7/32"/5.5mm, 1/4"/6.4mm, 5/16"/8mm. Long Drive Punch Sizes: 1/8"/3.2mm, 3/16"/4.8mm, 1/4"/6.3mm, 5/16"/8.0mm, 3/8"/9.5mm. Automatic Centre Punch length: 125mm. Brass punch sets are ideal for professional work where marring would be an issue. Supplied in a plastic pouch.