Attributes . 25/32 in. to 1-7/32 in. diameter (21 To 30mm), 31/32 in. to 1-1/4 in. diameter (24 To 32mm), 1-3/32 in. to 1-15/32 in. (28 To 37mm), 1-1/4 in. to 1-19/32 in. (32 To 41mm) . Names