INSIZE 4142-200 Granite Square with V Groove 200x200x200mm

The INSIZE 4142-200 is a granite square with a V groove, measuring 200×200×200mm and taking a shaft from 9 to 70mm in diameter. INSIZE states 6µm parallelism and squareness across faces A, B, C, D, E and F, and the same 6µm figure for the V groove's alignment to those faces. The V groove lets the square clamp and hold a round shaft or bar at a precise right angle to the reference faces, which suits marking-out, squareness checks and workholding on a surface plate in a toolroom or inspection area.