Steel Bench Block 2.5" Square - Jewelry Making - SFC Tools - 12-316 Made of high quality tool steel. Can be used for forming, riveting, work-hardening wire, planishing flat elements, stamping, and more. Measures 6.2 x 6.2 x 2.0 cm (2.5 x 2.5 x 0.75") and weighs 578 g (1 lb 4.3 oz).