PRECUT SHIMS are made of stainless steel 304 full hard material protected against rust and deformation. Different shim sizes fit motors and generators over 1,000 HP. All shims are marked with thickness and size to facilitate identification and re-use. Shims come in a METAL STORAGE carrying case with size dividers. Also available in individual packages. 13 available shim thicknesses allow all possible shim change combination with a maximum of 3 shims. Bur-free for higher accuracy in machinery alignment.