Westward V-Block Set 4KY25 V-blocks are widely used tools in manufacturing and inspection processes to securely position cylindrical workpieces. Magnetic v-blocks are available with always-on or on/off magnets. On the other hand, steel and cast iron v-blocks may come with detachable clamps that can be tightened to workpieces of different sizes using threaded rods. Material / Steel Includes / (4) Blocks; (4) Clamps Height - Inch / 1-1/4 inch; 1-1/2 inch Length - Inch / 1-5/8 inch; 2 inch Width (In.) / 1-1/4 inch; 1-1/2 inch