Technical Data:
Series: 167
Product type: Setting Standard for Outside Micrometer
Application: Setting the zero point on outside micrometers
Length: 3 in
Accuracy: +/-0.0001 in
Parallelism: 0.00008 in
Flatness: 0.000012 in

Dimensions:
Length L=3 in
Reference length ell=40 mm
Diameter D=0.25 in
Front reference dimension=11 mm; hex-end width=12.7 mm