ITEM NAME:Electronic Digital Caliper Inch/Metric/Fractions Stainless Steel 0-6 Inch 150 mm Features: 4CR13 stainless steel shaft with ABS plastic housing, solid and durable, depth-measurement blade, precise internal and external measuring jaws, precision lapping finish electronic digital calipers. Inch/Metric/Fractions conversion for more different needs. Resolusion is 0.01mm. The metric caliper can measure up to 6 inch / 150mm, you can test inner diameter, external diameter, depth, length, width by it. The 3 button design make it easy to use; one is on / off, one is mm/in/F switch, the last is back to zero. Features a large, easy to read, high contrast LCD display screen. An ideal tool for a broad range of industrial and automative applications. Specifications: Material: 4CR13 Stainless Steel Resolution: 0.01mm/0.0004" Accuracy: Â ±0.04mm/0.0016" Battery: 1 x LR44 Button Battery Total Length: 234mm/9.21" Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you.1 x Vernier Caliper. The 3 button design make it easy to use; one is on / off, one is mm/in/F switch, the last is back to zero. Material: 4CR13 Stainless Steel. Resolusion is 0.01mm. We believe that everything could be solved by communication.