Technical Data:
Series: 345
Product type: Digimatic Inside Micrometer, Caliper Type
Application: Inside measurement, including workpieces with grooves that cannot be measured by conventional two-point or three-point inside micrometers
Measuring faces: Carbide-tipped
Constant measuring-force device: Yes
Power source: 1 x SR44 battery, 938882 included as standard for operational checks
Battery life: Approx. 2.4 years under normal use

Optional:
264-020 USB Input Tool IT-020U
05CZA662 Connecting Cable, 1 m
05CZA663 Connecting Cable, 2 m
06AFM380B USB Input Tool Direct, 2 m
264-622 Transmitter, IP67
264-626 Transmitter, IP67 Bluetooth
264-623 Transmitter, Buzzer
264-627 Transmitter, Buzzer Bluetooth
02AZF310 Connecting Unit Adapter
02AZE140B Connecting Cable, foot-switch compatible
Connector type: B

Remark:
Reference setting requires an optional reference gage such as a Gage Block Accessory Set, CERA Inside Micro Checker or setting ring.
Measuring range: 25 - 50 mm
Resolution: 0.001 mm
Accuracy: +/-6 um
Jaw type: Anvil
Mass: 325 g

Dimensions:
Jaw type: Anvil
Body/reference Dia.=18 mm
Spindle/reference Dia.=6.35 mm
Anvil-jaw clearance=1 mm
Reference radius=R12.2
Reference dimensions=12.2 mm; 18.5 mm; 4.3 mm; 49.8 mm; 62.9 mm; 32 mm; 12 mm; 2.4 mm; 4.5 mm; 3 mm
Measuring span reference=2 in or 50 mm