3M 45095, Roloc Disc Pad TR, Medium 2 in 1/4-20 Internal, 7000045282 
3M 14211, Roloc Disc Pad TS and TSM, Medium 2 in 1/4-20 Internal, 7000045283 
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box 
Insize 1123-200AWL, DIGITAL INSIDE KNIFE-EDGE CALIPER, .8-8″/20-200mm, built-in wireless, 6928640378096
$436.70
Resolution: .0005″/0.01mm.
Measure diameter of deep step holes.
Buttons: on/off, zero, inch/mm.
Automatic power off, move the digital unit to turn on power.
Battery CR2032. Data output.
Made of stainless steel.
Optional accessory: data output cable
