Stahlwille 1/4-Inch Hex Ratchet Bit Holder Screwdriver is professional tool for installation and maintenance and can be applied for any task such as working on domestic appliances, furniture, electronic products, automotive for factory use. 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 bit screwdriver inserts with external hex 1/4-inch DIN 3126/ISO 1173 Type C 6.3. The 1/4-inch sockets can be used with adaptor No 3115/1 (external hex and square drive 1/4-inch). 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 degree working angle).