Wera 7515/7 Kraftform Safe-Torque Speed Bicycle Screwdriver Set 1 050758500017 piece tool set. For professional screwdriving professional fine adjustment AND for torque controlled screwdriving. Secure slip over torque mechanism with quick clockwise counterclockwise setting and five selectable tightening torques (2. 0; 3. 0; 4. 0; 5. 0; 6. 0 Nm) and one fixed position (Torque Lock) for unlimited loosening and tightening moments. Quick release holder for high robustness. Ideal for bike operations. Suitable for bits with 1 4"