3M 923, Disc Pad Holder, 3 in 1/4 in Shank, 7000120560 
Insize 4771-40, SHANK RUNOUT TESTER, taper CAT40, 6940561952353
$7,536.62
Accuracy 1um
Measuring the radial runout of shanks, collets and cutting tools.
Optional accessory dial test indicator, magnetic stand.
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