Steel Vee Block Set - Small Precision. Height: 3/4" Width: 3/4" Length: 1". Capacity - 1/8" to 3/4". ‘V’ Blocks are made from high quality tool steel. Hardened to 55 HRC + 2 HRC and are precision ground. ‘V’ are parallel and its squareness to the. Supplied with clamps for holding job. Perfect alignment in matched pairs.