Block is made from steel and is hardened and ground. Bench block is 3" (75mm) in diameter by 1-1/2" (38mm) high with oversize holes from 1/8 to 5/8" (3-16mm) diameter and one v-groove.
Bench Block, 3" Diameter x 1-1/2" High with Oversize Holes from 1/8-5/8" Diameter and One V-Groove. The Bench Block is useful for holding work when driving pins, drilling and so on.