Insize 3520-100E, DIGITAL INSIDE MICROMETER, 3-4″/75-100mm, 6928640356735

Resolution .00005″/0.001mm.
Button function: on/off, set, inch/mm, ABS/INC.
Data output.
LR44 battery, automatic power off.
Ratchet stop.
Carbide measuring faces.
Optional accessory: data output cable, setting ring (part no. 6313).