Resolution: .00005″/0.001mm.
Micrometer head accuracy: ?.00012″.
Rod accuracy: ?[.001+.0005(L/3)]”, L is the measuring range in inch.
Button function: on/off, set, inch/mm, ABS/INC.
IP65 dust/waterproof.
Data output. LR44 battery, automatic power off.
Rods with flat end. Ratchet stop.

3M 45097, Roloc Disc Pad TR, Extra Hard 2 in 1/4-20 Internal, 7000045284
Insize 3127-E24, DIGITAL THREE POINTS INTERNAL MICROMETER, .8-2"/20-51mm, 6928640356506
3M 77737, ROLOC DISC PAD TS AND TSM, EXTRA HARD, 3 IN 1/4-20 INTERNAL, 7010299209 