Die Button Shim Assortment, System of Measurement Metric, Inside Diameter 4.95 mm, 5.92 mm, 7.82 mm, 8 mm, 11.65 mm, 15.5 mm, Product Type Arbor Shim Assortment, Outside Diameter 6 mm, 8 mm, 10 mm, 13 mm, 16 mm, 20 mm, Inside Diameter Tolerance +0.254/-0.000 mm, Outside Diameter Tolerance +0.000/-0.254 mm, Thickness 0.125 mm, 0.25 mm, 0.4 mm, 0.5 mm, 0.65 mm, 0.8 mm, Thickness Tolerance +/-0.005 mm, +/-0.010 mm, +/-0.025 mm, Keyway Width Not Applicable, Keyway Depth Not Applicable