Technical Data:
Series: 167
Product type: Setting Standard for Outside Micrometer
Application: Setting the zero point on outside micrometers
Length: 20 in
Accuracy: +/-0.0003 in
Parallelism: 0.00008 in
Flatness: 0.000012 in

Dimensions:
Length L=20 in
Reference length ell=106 mm
Diameter D=0.47 in
Central body Dia.=17 mm; body reference length=60 mm