FIELD: machine building.
SUBSTANCE: proposed instrument comprises casing, split gage with one part secured on said casing and another one mounted on movable carriage, and carriage drive. Note here that said casing is furnished with stem arranged opposite aforesaid gage and aligned therewith to allow feeding indicator measuring tip thereto. Said indicator is located and preset distance from controlled article face.
EFFECT: expanded operating performances, possibility to control inner thread diameter play relative to article outer diameter.
2 dwg
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