FIELD: measuring technique.
SUBSTANCE: device comprises housing with two pars of supports and levers. One of the levers is provided with measuring tips. The other lever is provided with indicators. The indicating heads of the indicator are mounted coaxially to the corresponding measuring tips provided on the first lever. The housing is made of a cylindrical rod. The first lever is mounted on the cylindrical rod for permitting axial movement. The second lever is mounted on the cylindrical rod to exclude movement. The measuring heads of the first lever are arranged on both sides of the cylindrical rod and are at the same distance from its longitudinal axis.
EFFECT: enhanced precision and simplified structure.
1 dwg
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