Technical Data:
Series: 122
Product type: Blade Micrometer
Spindle type: Non-rotating
Application: Measuring groove diameter of shafts, keyways and other hard-to-reach areas
Constant measuring force: Ratchet Stop
Carbide-tipped measuring faces: Available
Accuracy basis: EMPE, ISO 3611:2023 and ASME B89.1.13-2013
Measuring range: 250 - 275 mm
Graduation: 0.01 mm
Accuracy: +/-6 um
Parallelism: 6 um
Blade configuration: Type A

Blade type dimensions:
Type A
Blade Dia.=6 mm
Blade end radius=R8
Blade thickness=0.75 mm
Blade width/detail=6.5 mm
Lower blade dimension=6 mm

Dimensions:
L=250 mm
a=18 mm
b=169 mm
C=18.7 mm
Analog-model drawing common dimensions: spindle Dia.=6.35 mm
Main body Dia.=18 mm
Front longitudinal dimension=25 mm
Body-front longitudinal dimension=14.8 mm
Main body section=15 mm
Rear body length=83.5 mm