The Luigino Skate Allen Key is a very convenient tool.

Also called T wrench, this tool is an allen key and bearing pusher in one.

Suitable to use with your inline skates, roller skates, ice skate, and roller derby skates. 

• Shaped to fit in the palm of the hand
• Wide angle allows for good leverage
• 4mm hex head. Fits all Luigino bolts and axles.