Shimano Bottom Bracket tools. Used for installing or removing Shimano external bottom brackets. I based the designs on the Shimano tool TL-FC32 shown in the picture. Should also work with center lock brakes.

There are 5 designs included. A small and large socket driven by a half inch or 40mm wrench. An open and closed ended wrench that are near exact copies of the shimano tool I own. The last design is based on a bike cog and can be turned with a chain whip.