The Groz Ball Bearing Vee Block & Clamp Sets are designed to inspect and detect out-of-round conditions, defects and lobes in components, without causing any damage to either the parts or the Vee Blocks. These high-precision Vee Blocks are ideal for use where regular inspection set-ups are not possible. The unique design allows for the inspection of components from two angles by simply turning the spacer block 90 degrees. 

The Vee Block bases are manufactured from cast iron, ensuring durability and stability. The balls are fully hardened (60 HRC) and wear-resistant, with sphericity controlled to a high degree of accuracy, and finished to 0.2 micro inches. The sets are supplied in matched pairs, complete with two clamps and one test ball, and are controlled within ±0.0002" (±0.005mm).