Easy change of direction (anticlockwise, clockwise and fixed) by simply twisting the locking ring Ergonomically designed, non-slip 2-component handle for optimum force transmission Storage compartment for 6 bits in the handle; push button to open (Size 1) For BITS screwdriver inserts with external hex 1/4" DIN 3126/ISO 1173 Type C 6.3 1/4" sockets can be used with Adaptor No 3115/1 (external hex and square drive 1/4") Easy bit change thanks to internal hex. drive with magnet Knurled spin section for faster screw advance Heavy-duty mechanism with 48 teeth (7.5° working angle) Measurement: Size : 2 Inside Hexagon : D 6,3 L1 mm : 25 L2 mm : 95 d mm : 10 Weight g : 137