Resolution .00005″/0.001mm.
IP54 dust/waterproof.
Buttons: on/off, set, inch/mm, ABS/INC.
Data output. LR44 battery, automatic power off.
Carbide measuring faces. Ratchet stop.
Supplied with extension rods.
Setting rings are included (except part no. 3128-12).

3M 45097, Roloc Disc Pad TR, Extra Hard 2 in 1/4-20 Internal, 7000045284
Dynabrade 43492 Felt Silencer, 19.5mm ID x 31mm OD
Dynabrade 79955 6" Dia. x 150 Grit Non-Vacuum Hook-Face DynaCut Disc, 100/Box
3M 45179, Roloc Disc Pad TR, Medium 4 in 1/4-20 Internal, 7000045281 