Resolution .00005″/0.001mm
IP65 dust/waterproof.
Buttons: on/off, set, inch/mm, ABS/INC.
Data output.
LR44 battery, automatic power off.
Ratchet stop.
Optional accessary: data output cable, setting ring (part no. 6313), micrometer stand and clamp (part no. 6301 and 6301-2).

3M 28713 ROLOC DISC PAD TR, HARD 4 IN 5/8-11 INTERNAL, 7010298961
Insize 6143, DEPTH STOP FOR CALIPERS, 6928640371301
3M 45179, Roloc Disc Pad TR, Medium 4 in 1/4-20 Internal, 7000045281 