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
Insize 4209-6, LONG HANDLE TELESCOPING GAGE, 3-1/2 ~ 6″, 6928640311581
$16.55

ACS Diamond Cloth Belt, CX1250 3" X 30" 125U
Insize 0010-A35, SOUND LEVEL METER, 35dB~130dB, 6974029777004
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102 