17-piece set with bits in a length of 89 mm in a practical pouch. 1 holder 816 RA Kraftform with ratchet function, fine-toothing for a small return angle, switchover ring (right, fixed, left), maximum torque of up to 50 Newton meters. '1/4 In. hexagon socket head take-up and rapidaptor technology for low-fatigue working and rapid bit change, magnetic. Can also be used directly with a power tool.