Patent ID: 7155792

Claim:
A hand tool for spreading a disc brake pad connected to a piston in a caliper housing, thereby compressing the piston into the caliper housing, said hand tool comprising: a) a frame member with a depending fixed handle, said frame member having a central aperture therethrough; b) a backing plate having a central through bore; c) means for mounting a forward end of said frame member to a rear surface of said backing plate, so that said central aperture in said frame member is in alignment with said central through bore in said backing plate; d) shaft that slideably extends through said central aperture in said frame member and said central through bore in said backing plate; e) a ram having a collar affixed onto a front end of said shaft in opposed relation to said backing plate; f) a trigger handle pivotally affixed to said frame member adjacent to said fixed handle; g) means for moving said shaft forwards when said trigger handle is squeezed towards said fixed handle by a hand of a person; h) means for holding said shaft stationary, thereby preventing said shaft from moving backwards when said trigger handle is released, whereby when said trigger handle is continuously squeezed and released said shaft will always travel forwards until said ram makes contact with the disc brake pad and said backing plate makes contact with one side of the caliper housing, thereby compressing the piston into the caliper housing; and i) means for disengaging said shaft from said moving means and said holding means, so that said shaft can be manually pulled backwards to release said ram away from the disc brake pad, wherein said frame member with said depending fixed handle is a generally U-shaped housing having a rear wall and a pair of side walls, in which said central aperture is in an upper end of said rear wall, wherein said mounting means includes a pair of flanges, in which each said flange is bent outwardly from one said side wall of said U-shaped housing and then affixed to a rear surface of said backing plate.