- For accurate readings of inside, outside, step and depth measurements of books and artifacts
- This 6" stainless steel caliper features a high contrast digital display that easily switches between inches, millimeters and fractions
- Accuracy is guaranteed to 0.001"
- Free-wheeling friction roller advances and retracts the slide and there is an extendable depth gauge for use in slots and small holes
- Comes in a foam lined plastic storage / carry case
- Auto on/off feature will preserve battery life
- Operates on one LR44 battery (included)
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