The Shim Assortment from Grainger is a set of shims made from stainless steel in a variety of thicknesses. The set includes 50 shims with thicknesses of 0.002", 0.003", 0.005", 0.007", 0.010", 0.015", and 0.020". The shims have a hardness of Rockwell B85 and can withstand temperatures up to 1600°F. They are designed for precision leveling, spacing, and aligning of machinery and equipment. The shims measure 1/2" x 2" with a hole size of 1/4". This versatile set provides an assortment of shim thicknesses for leveling applications.