The Abbey Bike Tools 13mm Chamferless Socket will gain firm contact with very shallow bleeders, with no danger of sliding off. It is designed to help you install the fenders that mount behind bleeders on a modern Fox fork, or to assist with servicing this type of fork.
It has a socket compatible with a 3/8â torque wrench, for ease of use, and is machined from billet aluminium before being beautifully anodised, so it will gain a snug fit with your bleeder, with tight tolerance, without marring or damaging it in the process and without the necessity to grind it down.