The essential dapping block includes eight dapping tools with matching block, really all one needs for virtually any job. Cavity sizes are 28, 24, 20, 18, 15, 12, 9 and 6mm with corresponding punches. Block is completely smooth on opposite side for use as a bench block. This set is made of polished steel and comes in a functional wooden stand. Only from EURO TOOL. Weighs 5 lbs. 4 oz.