Technical Data:
Series: 146
Product type: Groove Micrometer
Application: Measures width and location of grooves inside bores and tubes
Measurement modes: Inside-diameter groove measurement and outside-diameter groove measurement
Spindle type: Non-rotating
Constant measuring force: Two-directional ratchet stop
Reference point: Master gage required for OD and ID measurements except 0 - 1 in / 0 - 25 mm
Accuracy basis: EMPE, ISO 3611:2023 and ASME B89.1.13-2013
Range inside: 26.5 - 51.5 mm
Range outside: 25 - 50 mm
Graduation: 0.01 mm
Accuracy: +/-10 um
Parallelism: 10 um
Flange: Dia.12.7 mm

Dimensions:
L=50 mm
Longitudinal dimension ell=90 mm
Common long-range drawing dimensions:
Spindle Dia.=6.35 mm
Flange Dia.=12.7 mm
Front flange thickness=0.75 mm
Intermediate Dia.=10 mm
Body Dia.=15 mm
Body length=32 mm
Rear body Dia.=18 mm
Rear body length=47 mm
Rear end length=17 mm
Rear end Dia.=9.7 mm