Thickness gauge .002-.015in consists of a wire gauge, an engineers' combination taper gauge for measuring slot widths, and an assortment of thickness gauge leaves, all folding within a compact steel case. This product includes a locking device to lock any leaf or leaves in position. Includes a taper gauge leaf for measuring slot widths from 1/64-3/16in in 64ths of an inch. *Product images are representative only.