Description: These Digital Calipers are great for checking the sizes of faceted stones, or anything really. They can measure the inside of tubing or outside of it. They are very accurate and a great addition to any maker or vendor's tools set.

Material: Carbon Fiber Composite

Accuracy: +/- 0.01 Metric and Imperial

Maximum Measurement: 100mm or 4inch

Battery Type: LR44 or A76  (1 needed to power device)

Size: 18cm x 6.6cm x 12.4mm

Made In: China