Wera 1430 ESD Kraftform Micro adjustable torque screwdrivers (0.02-0.11 Nm) withApplication: Suitable for bits with 4 mm Halfmoon drive (and Wera Serie 9) and 4 mm HIOS drive (and Wera Series 21) Design: With quick release chuck for rapid bit change Accuracy: 10%. Numerical torque value scale, audible excess load signal Handle: Kraftform Micro with non roll feature and rotating cap, multi component Features Adjustable Kraftform Micro ESD torque screwdriver with quick release chuck ESD safe tool thanks to surface resistance of