Technical Data:
Digital two/three points internal micrometer
Range: 16-20mm/0.63-0.79in
Type: C
Three 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: 4um
Extension rod included: 150mm

Dimensions:
L=99mm
a=0.5mm
b=6mm
c=4.5mm

Remark:
Setting ring: dia.16mm included
Optional wireless transmitter: 7315-31; receiver required
Optional accessories: setting ring 6312; micrometer stand/clamp 6301 and 6301-2
Supplied with manufacturer inspection certificate