Abstract: A cutting tool comprises an elongate housing for slidably receiving a cutting blade. The cutting tool is in the form of an attachment for an electric jigsaw, and the housing incorporates a pair of clamping brackets for mounting on a footplate of the jigsaw. Each bracket is provided with a mounting flange for clamping onto the footplate when a compressive force is applied to move the clamping brackets towards each other. The cutting blade is driven by the jigsaw in a reciprocating manner. A workpiece support extends from a free end of the housing, and has a support member arranged to engage a workpiece in a stabilizing manner adjacent the free end of the housing when cutting. The support member is fixed to a guide member which extends parallel to and adjacent the cutting blade where it protrudes from the free end of the housing.