Features Large screen display, you can read it very clearly. Digital indicator can switch between millimeter and inch. M2.5 probe head, you can change a longer probe head according to your needs. Removable rear cover for using on different magnetic gauge bases, its hole diameter is about 6.5mm/0.26inch. Metal integrated structure, stable and durable with high accuracy. Features: <ol> <li>Large screen display, you can read it very clearly.</li> <li>It can switch between millimeter and inch.</li> <li>M2.5 probe head, you can change a longer probe head according to your needs.</li> <li>Metal integrated structure, stable and durable with high accuracy.</li> <li>Removable rear cover for using on different magnetic gauge bases, its hole diameter is about 6.5mm / 0.26inch. </li> </ol> Specifications: Material: Metal + Plastic Resolution: 0.01mm/0.0005'' Measuring Range: 0~12.7mm/0.5" Battery: 1 x Button Cell Battery Voltage: 1.5V Weight: Approx. 264g Package Included: 1 x Digital Indicator 1 x Button Cell Note: Please allow some error due to manual measurement. Thanks for your understanding. Package List