Time saving source, the professional can access narrow spaces to reach screws or nuts. The design is asymmetrical and the reducer is integrated for optimum power passage with reduced effort. The ratchet extensions can be used with either a manual ratchet or with an energized ratchet (pneumatic or electric). designed to move away from the intervention zone and thus facilitate the tightening or loosening action. The professional has more space to control his clamping tool. Designed to also be used with a manual or energized ratchet. Asymmetric design and integrated reducer for optimum power passage with reduced effort.