3M 45094, Roloc Disc Pad TR, Soft 2 in 1/4-20 Internal, 7000045278 
3M 45098, Roloc Disc Pad TR, Soft 1-1/2 in 1/4-20 Internal, 7000045277 
Insize 2435-E124, BORE GAGES, measuring depth 40″, range .32-.47″, 6940561947632
$5,271.10
Applicable for .001″ or .0001″ or .00005″ graduation dial indicators.
Carbide contact point and anvil.
Optional accessory: dial indicator or dial comparator, setting ring.
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