| 摘要 |
This present invention provides a blade (40) for use with a power tool, said blade comprising: an arcuate cutting edge (54); an elongate body member having its longitudinal axis substantially aligned with a radius of said arcuate cutting edge; a first attachment point (42) for attaching said blade to said power tool, said first attachment point providing means whereby, in use of said blade, said arcuate cutting edge may be driven by said power tool in a reciprocating motion; a second attachment point (52), also for attaching said blade to said power tool, said second attachment point providing a pivot point about which, in use of said blade, said blade may pivot; wherein the centre of curvature (C) of said arcuate cutting edge is offset from said pivot point. In a second aspect, the present invention also provides a power tool for cutting into or through a workpiece, said power tool being suitable for use with such a blade. |
