/ Precision Measuring Tools / Precision Hand Tools / Precision Shop Tools / Other Shop Tools / 119 * Not actual product image 50491 119 Bench Block 50491 Other similar products 4-7/8" (120mm) Diameter x 1-1/2" (38mm) High with Ten Oversize Holes from 1/8-7/8" (3-22mm) Diameter and Two V-Grooves at Right Angles Heavy-Duty 4 7/8" (120mm) Diameter Angles. Features Contact Starrett Features The base is hex-shaped, so the block to be held rigidly in a vise. Made from alloy steel, hardened, and ground, top and bottom This block weighs five pounds (2.3kg)