Double ended metric screw plug gauge

Made:
1907 in Warrington
Double ended metric screw plug gauge size M4.

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Double ended metric screw plug gauge size M4.
Science Museum Group
© The Board of Trustees of the Science Museum

Double ended metric screw plug gauge size M4.

Details

Category:
Industrial Metrology
Object Number:
1969-288/7
Materials:
steel (metal)
Measurements:
8.5 x .9 cm
type:
screw plug gauge
credit:
Coventry Gauge and Tool Co.