Arbor Shim Assortment System of Measurement Inch Inside Diameter 0.375 in 0.5 in 0.625 in 0.75 in 1 in Product Type Arbor Shim Assortment Outside Diameter 0.625 in 0.75 in 1 in 1.125 in 1.375 in Inside Diameter Tolerance +0.011/-0.000 in Outside Diameter Tolerance +/-0.002 in Thickness 0.005 in 0.01 in 0.015 in Thickness Tolerance +/-0.0005 in +/-0.00075 in +/-0.001 in Keyway Width Not Applicable Keyway Depth Not Applicable Round Shim Type Arbor Shim Material Steel