Large LCD display provides easy-to-read numbers Carbide tipped measurement surfaces Resolution to 5 decimal places Linear accuracy: +/- .0001" (.003 mm) Inch/millimetre conversion Includes calibration wrench Zero at any position Lock screw to hold mechanism in position Automatic OFF button Includes: Thimble ratchet, two 1.5 V batteries, type LR44, wooden storage case with foam insert