Supplementary utensil and supplementary utensil of examining of nut hole three -dimensional examined of double -screw bolt three -dimensional on white automobile body

The utility model discloses a supplementary utensil of examining of double -screw bolt three -dimensional on the white automobile body, including the hemispheroid, the department sets up the screw hole of surveying double -screw bolt looks adaptation with the quilt at the bottom surface center of hemispheroid. The utility model also discloses a supplementary utensil of examining of nut hole three -dimensional on the white automobile body, including hemispheroid and adaptation pole, the department sets up threaded hole at the bottom surface center of hemispheroid, the middle part of adaptation pole is equipped with the step, and this step falls into first screw thread section and second screw thread section with the adaptation pole, nut hole looks adaptation is surveyed with the quilt to first screw thread section, second screw thread section and screw hole looks adaptation. The utility model discloses can solve the dead angle problem of measuring, its measurement accuracy who has improved on the white automob