Retaining Ring Assortment Inch PK265 System of Measurement Inch Ring Type E-Style Retaining Ring Thickness 0.015 in 0.025 in 0.035 in 0.042 in 0.05 in Fits Shaft Diameter 1/8 in 5/32 in 3/16 in 7/32 in 1/4 in 5/16 in 3/8 in 7/16 in 1/2 in 5/8 in 3/4 in 7/8 in For Bore Diameter 15/64 in 19/64 in 11/32 in 29/64 in 33/64 in 35/64 in 11/16 in 45/64 in 13/16 in 61/64 in 1 9/64 in 1 5/16 in