Torque screwdriver with pre set torque value of 35 cnm accuracy 10 torque recommended by leading smart phone manufacturers compact handleinterchangeable blade system for torque controlled precision screwdriving jobs the kraftform micro esd torque screwdriver is ideal for the torque controlled tightening of screws on components subject to damage from electrostatic energy designed to securely hold bits with 4 mm halfmoon drive wera series 9 and bits with 4 mm hios drive wera series