Support workpieces at the exact height you need for inspection, milling, or grinding. These V-blocks combine the precision of shims and blocks with the adjustability of a screw jack. They help you keep workpieces level, even when the ends are uneven. Turn a dial to move the surface of each block up or down in 0.001” increments, then lock it in place with a set screw. Made in pairs, these blocks are ground to tight tolerances for grooves that are centered and parallel with the base. They’re hardened iron for durability and dent resistance.