| 摘要 |
Disclosed is a tool for use with brake pistons and the like having a generally cylindrical body with a working face at one end of the body member which has an area and configuration corresponding to the face of the piston. The piston has one or more shall depressions therein which are normally unsuitable for use with conventional tools. The characterizing feature of the tool is a rim extending outwardly from the working face and surrounding it. When the tool is placed over the face of the piston, the rim grips the perimeter of the piston. A pin extending outwardly from the working surface is aligned with the deepest depression when the tool is placed over the face of the piston. The rim and pin coact to rotate the piston upon rotation of the tool.
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