Patent ID: 7721450

Claim:
An electrically operated hand held reciprocating saw comprising: a motor housed in a housing, the motor having a drive spindle coupled to a gearbox arranged to convert rotary motion of the drive spindle into reciprocating motion of a shaft; and a blade clamp disposed on the shaft and being arranged for gripping a saw blade, wherein the blade clamp comprises: a body defining a channel for accommodating the saw blade; and a retaining member coupled to a spring mounted on the body, the spring being arranged to urge the retaining member towards an active position in the channel to retain the saw blade in the channel; the retaining member comprises a groove arranged to engage with an edge of the saw blade when the saw blade is disposed in the channel, wherein a rear surface of the channel adjacent to the retaining member comprises a surface arranged to engage with a protrusion disposed on the retaining member or the groove respectively during use.