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
$36.91
Measuring/ Inspection Instruments
Insize 4209-2, LONG HANDLE TELESCOPING GAGE, 1/2 ~ 3/4″, 6928640311543
$14.30
Measuring/ Inspection Instruments
$46.70

3M 20921, PSA Cloth Disc 348D, 80 X-weight, 1-1/2 in x NH, Die 150S, 7010299967
Insize 7341-11S, PIN GAGE HANDLE (with 1pc handle and 4 pairs of collecting bushes), .579-.635", 6928640370601 