Wrench is needed to install pins.
Clamping bushes (.008-.281″) are made of brass, clamping bushes (.281-1.010″) are made of aluminum.
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3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
Insize 4209-5, LONG HANDLE TELESCOPING GAGE, 2-1/8 ~ 3-1/2", 6928640311574 