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
Insize 4209-6, LONG HANDLE TELESCOPING GAGE, 3-1/2 ~ 6″, 6928640311581
$16.55
Measuring/ Inspection Instruments
$64.73
Measuring/ Inspection Instruments
$36.91

Insize 4209-2, LONG HANDLE TELESCOPING GAGE, 1/2 ~ 3/4", 6928640311543 