Dapping Punch Set - Block w/8 Punches - SFC Tools - 25-622 Ideal for doming soft metals. This set includes 8 steel dapping punches ranging from 5-27 mm (0.2 - 1.1") in diameter; Each dapping punch has its size engraved on it. All punches are made of polished tool hardened steel and measure 3.5" (9 cm) long. Punch sizes in mm: 27, 24, 19, 17, 14, 11, 8, 5 The dapping block is made of polished tool hardened steel and measures 3.5 x 1 7/8 x 7/8". It can also be turned over and used as a bench block. Depression sizes in mm: 27, 24, 19, 17, 14, 11, 8, 5.