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
$39.86
Measuring/ Inspection Instruments
$35.87
Measuring/ Inspection Instruments
Insize 4209-4, LONG HANDLE TELESCOPING GAGE, 1-1/4 ~ 2-1/8″, 6928640311567
$16.55

Standard Abrasives 724275, Buff and Blend Circle Buff GP, A/O Very Fine, 2 in x 1 Ply x 8-32, 7010368698
Insize 7341-3S, PIN GAGE HANDLE (with 1pc handle and 7 pairs of collecting bushes), .131-.180", 6928640370588 