Technical Data:
Series: 177
Product type: Setting Ring
Application: Reference setting of dial bore gages, Holtest and inside micrometers
Actual diameter marking: 10 uin / 0.001 mm increments
Diameter calibration position: Center of height T
Standard: Mitutoyo factory reference-setting standard; not ASME B89.1.5 classification
Cylindricity evaluation: Three cross-sections, near each side face and at the center
Material: Ceramic
Nominal inside diameter d: 0.65 in
Type: A
Maximum variation between nominal and actual marked diameter: +/-0.0004 in
Uncertainty of marked diameter value: 0.00006 in
Roundness / cylindricity: 0.00004 in

Dimensions:
D=Dia.45 mm
E=-
T=10 mm
H=2.0 mm
K=6.0 mm