The innovative one-way bearing in the central shaft of this wrench will save you plenty of time and effort when you're working on your quad. Tightening or loosening, there's no more awkward removing and replacing your wrench to get the work done. Plus, the long socket keeps your fingers out of the way of any sharp edges on your quad, whether it's your frame or your props.
The one-way bearing is on the M5 socket, the wrench also has a standard M3 socket on each arm.