ESD Safe Dial Caliper Inch 6inSwiss Precision from Wiha Division KWB Switzerland Non-metallic high-tech material with 50% fiberglass content ESD-Safe Dissipative Material Ideal for Small Delicate Parts Thermal Stability Short Contact 180ºC – Continuous 100ºC Chemical resistant- organic solvents, alkalis, & petroleum products Inch Dial-Max Caliper.001in Resolution to 6in Length Bi-directional Thumb Roller with Friction stop Bezel Rotation Allows for Quick Realignment to Zero Does Inside, Outside, Depth and Step Measurement Super Light Weight For All Day Non Fatigue Handling