Wrench is needed to install pins.
Clamping bushes (.008-.281″) are made of brass, clamping bushes (.281-1.010″) are made of aluminum.
Related products
Measuring/ Inspection Instruments
$33.36
Measuring/ Inspection Instruments
$46.70
Measuring/ Inspection Instruments
$39.86
Measuring/ Inspection Instruments
$36.91

3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
Dynabrade 52169 Handle Assembly 
