| 摘要 |
A novel driver blade for use in a fastening tool having a piston is provid ed comprising an elongate body, a head at one end of the body for coupling to t he piston, a tip at the other end of the body for impacting a fastener to drive said fastener into a workpiece, and a stiffening rib protruding from the body, the rib extending substantially along the length of the body, wherein the stamped elongate driver blade is made of annealed cold rolled spring steel. A novel method of manufacturing an elonga te driver blade is also provided comprising the steps of providing cold rolled spring steel, forming an elongate blank from the cold rolled spring steel, providing a stamping di e having a generally planar stamping surface with an elongate groove in the stamping surface, and stamping the blank into the stamping die with the elongate groove to form th e elongate driver blade having an elongate stiffening rib.
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