3 x 1-1/4 v-groove wheel 1/2 plain bore
"3 x 1-1/4 phenolic wheel, 1/2 plain bore"
"Grey hard rubber wheel, 3 x 1-1/4 x 3/8 inch plain bore"
Black soft rubber wheel 3 x 1-1/4 x 3/8 inch plain bore
"3-1/4 x 1-1/2 phenolic wheel, 3/4 RB"
"3-1/4 x 1-1/2 phenolic wheel, 5/8 RB"
"3-1/4 x 1-1/2 phenolic wheel, 1/2 RB"
3 x 1-1/4 PROF wheel with 5/16 PB
3 x 1-3/16 inch sintered iron (semi-steel) wheel
