ring gauge

PART OF:
ring and plug screw gauges
Made:
1969
M 79 Metric thread ring gauge.

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M 79 Metric thread ring gauge.
Science Museum Group
© The Board of Trustees of the Science Museum

M 79 Metric thread ring gauge.

Details

Category:
Industrial Metrology
Object Number:
1969-288/1
Materials:
steel (metal)
Measurements:
2.5 x 13.5 cm
type:
thread gauge
credit:
Coventry Gauge and Tool Co.