Technical Data:
Digital two/three points internal micrometer
Range: 3-4mm/0.12-0.16in
Type: A
Two points
Carbide measuring points
Resolution: 0.001mm/0.00005in
IP65 dust/waterproof
Buttons: on/off, set, mm/inch, data transmit
Data output
Automatic power off
Ratchet stop
Accuracy: 6um

Dimensions:
L=22mm

Remark:
Setting ring: dia.4mm included
Optional wireless transmitter: 7315-31; receiver required
Optional accessories: setting ring 6312; micrometer stand/clamp 6301 and 6301-2