Series 7400 ESD Kraftform adjustable torque screwdrivers (2.5-29.0 in.lbs.) with Rapidaptor quick-release chuck, 7446 ESD x 11-29 in. lbs.Wera torque screwdriver. Dependable protection against electrostatic energy and associated damage. Variable torque setting option with highest precision. Simple adjustment of the required torque value without any special tools. Easy-to-read scale value. Rapidaptor quick-release technology for rapid bit change. Unlimited torque to loosen seized screws. Multi-component Kraftform handle with hard and soft zones for high working speeds, whilst being easy on the hand. Suitable for bits with hexagon head drive as per DIN ISO 1173-C 6.3 and E 6.3 (ISO 1173).