US Patent 8393063 Brake pad spreader tool for disc brake assemblies

A tool for spreading disc brake pads and compressing pistons of a disc brake caliper assembly includes a manually operated handle to drive a rod attached to a pusher plate. An arm assembly also connects the back end of the drive rod to the pusher plate. The plates thus extend in cantilever fashion from the drive rod and may be maintained in alignment by the arm assembly which also serves to reinforce the cantilever arrangement of the plates.