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 22971, Disc Holder Adapter 9, 5/8-11 External M10-1.25 Internal, 7000046094
Insize 7341-0S, PIN GAGE HANDLE (with 1pc handle and 6 pairs of collecting bushes),.008-.040", 6928640370854 