Spoke Wrench 3.3mm
This is the tool for turning the nipples on your bicycle wheels. By tightening and loosening the nipples, you thereby adjust the spoke tension, and trueness of your wheels.
The spoke wrenches come in various sizes, and they must fit very snuggly. Using the wrong size can easily damage the nipples. This one is the 3.3mm used on Brompton factory wheels, as well as on all the wheels we supply.