3M 45099, Roloc Disc Pad TR, Medium 1-1/2 in 1/4-20 Internal, 7000045280 
Insize 2443-E510, BORE GAGE, 11.024-20.079″, 6940561981209
$7,854.71
Accuracy (without dial comparator) 197uin
Repeatability (without dial comparator) 87uin
Applicable for .001″ ir .0001″ or .00005″ graduation dial indicators
Carbide contact points
Optional accessory: setting ring, bore gage setter
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