Bench Block Great For Metalsmiths & Metal Working. This is a new bench block. Useful for flattening, laying out or chasing. This is constructed of tool steel, ground flat, polished and case hardened. Great for silversmiths, blacksmiths, planishing and anyone who uses a anvil or staking tools. It's hardness is 46 to 50 Rockwell. It measures approximately 2 1/2" x 2 1/2" x 3/4" ( 63.5 x 63.5 x 19 mm).