Arbor Spacer Inside Diameter 1.5 in Outside Diameter 2.125 in Inside Diameter Tolerance +0.011/-0.000 in Outside Diameter Tolerance +/-0.002 in Thickness 0.125 in Thickness Tolerance +/-0.0030 in Keyway Width 3/8 in Keyway Depth 5/32 in Round Shim Type Arbor Spacer Material Steel Finish Plain Temper Full Hard Material Grade/Class Ungraded Rockwell Hardness B84 Tensile Strength 80 000 psi Manufacturer Location Made in USA Package Quantity 10