The Wera 400 Kraftform Kompakt 17 Piece T-Handle Screwdriver And Bit Set is the perfect combination of a high torque bit holding screwdriver and quick change bits for 16 different screwdriving applications.T-handle screwdriver for High-torque tightening and loosening momentsErgonomic 2-component handle for fatigue-free working comfort and grip.Rapidaptor technology for lightning-fast bit changesMagnetic bitholder for easier application of the screwFits 1/4" external hexagon Bits.The T-handle screwdriver is the optimal shape to fully fit the palm and fingers of the hand with soft rounded finger recesses that ensure maximum energy transfer into the tool as it becomes an extension of your arm which reduces fatigue in cases of prolonged use.Utilising Wera's Rapidaptor technology fast bit changes are possible as bits automatically lock in place as pressure is applied to the screw and a simple push forward on the spring loaded adaptor sleeve releases it again. The strong magnetic adaptor mea