3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097 
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068 
Insize 2427-3D75, SPLIT TYPE DIAL BORE GAGE FOR BLIND HOLES, .140-.156″, 6928640351235
$327.11
Split type contact points
Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
Repeatability (without indicator): 1um
Optional accessory: electronic/dial indicators or dial comparator
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