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
$35.87
Measuring/ Inspection Instruments
$125.64
Measuring/ Inspection Instruments
$46.70

3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 62612, Scotch-Weld Threadlocker TL71, Red, 10 mL Bottle, 7100039197, 10/case
Dynabrade 52169 Handle Assembly 
