3M 45095, Roloc Disc Pad TR, Medium 2 in 1/4-20 Internal, 7000045282 
3M 9450, Disc Pad Holder 917, 7 in x 5/16 in x 3/8 in 5/8-11 Internal, 7000028549 
Insize 2720-10, PRECISION BORE GAGES, 6-10″, with digital indicator, 6940561983647
$805.82
Digital indicator range .5″/12.7mm, resolution .00005″/0.001mm, part no. 2108-101EF
Optional accessory: setting ring (code 6313), long handle (code 7351), bore gage setter
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