- For checking internal boxes, recess diameter, etc.
- Each instrument has a movement of 1"
- Can be set with a micrometer or a ring gage.
| - Bezel rotates for zero setting.
- Button for opening/closing arms.
- Arms automatically open/close when button is released.
- Includes fitted case.
- Unique Bezel and Clamp Screw Stopper
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For Precise External Dial Caliper Gages Click Here