Arbor Shim, Steel, 0.004 in Thk, PK10, Product Type Arbor Shim, Round Shim Type Arbor Shim, Inside Diameter 1.375 in, Inside Diameter Tolerance + 0.011 /- 0.000 in, Outside Diameter 1.875 in, Outside Diameter Tolerance +/- 0.002 in, Thickness 0.004 in, Thickness Tolerance +/- 0.0005 in, Material Steel, Material Grade/Class Ungraded, Finish Plain, Color Silver, Temper Full Hard, Material Quality Standards AISI 1008-1010, Tensile Strength 80, 000 psi, Manufacturer Location Made in USA*