17-piece set with 89 mm long bits in a practical folding case. Includes 1 bit holder 838 RA-R L with ratchet function. The integrated ratchet in the handle features fine-tooth gearing for fast operation. The innovative ratchet mechanism allows for "twisting" when the screw offers little resistance. Switching the screw direction is intuitive: turning the ring switch to the right screws to the right; turning it to the left screws to the left. For precise work, the ratchet mechanism can be deactivated at the 0 position. The Rapidaptor quick-change chuck enables lightning-fast bit changes without additional tools. 16 bits (89 mm), tough and durable, for universal use.