The tightening occurs on the faces of the nut – Avoiding risks of matting
The twin maxi-drive-plus effect – The exclusive profile of the jaws locks the spanner on the nut meaning risks of untimely release and therefore injury are practically eliminated
Tightening and loosening occurs without releasing the spanner from the nut
The ratchet’s 5° resumption angle makes it possible to work where the minimum resumption angle of a 12-sided ring spanner (30°) or a open-ended spanner (60°) prevents their use