Patent ID: 6892459

Claim:
An apparatus comprising: a drive source arranged and constructed to reciprocally drive a blade; a blower arranged and constructed to be driven by the drive source so as to produce an air stream; an air channel arranged and constructed to guide the air stream to a position adjacent to the blade or a workpiece that will be cut by the blade; a chip collecting device arranged and constructed to draw cutting chips away from the workpiece that has been cut by the blade; wherein the air channel comprises a first flow channel and a second flow channel, the first flow channel being arranged on the downstream side of the blower so as to receive the air stream, and the second flow channel being arranged on the downstream side of the first flow channel and exhausting the air stream in a predetermined direction; a housing that defines a space for accommodating the drive source and the blower, wherein the first flow channel is defined within the housing; wherein the second flow channel is removably coupled to the first flow channel; wherein the first flow channel includes at least first and second connecting portions, wherein the second flow channel can be selectively connected to either one of the first and second connecting portions; wherein the second flow channel includes a nozzle portion and a connecting portion, the nozzle portion having a first exhaust opening, and the connecting portion being configured for connection to the first flow channel; and wherein the first flow channel includes a first inlet port that receives the air stream from the blower, and the connecting portion of the second flow channel includes a second inlet port that communicates with the first inlet port.