Wera Kraftform Kompakt 838 RA-R M Ratcheting Screwdriver Set15 piece ratchet screwdriver set with intuitive ratchet functionality. The 36 tooth ratchet mechanism (10 return angle) in the handle speeds up screwdriving without repositioning. Ergonomic handle allows easy switching between clockwise, counterclockwise, and neutral positions, preventing blisters and calluses. The magnetic bitholder fits 1 4" hex bits (DIN ISO 1173 C 6. 3 and E 6. 3). The Rapidaptor quick release chuck enables fast bit changes.