I have a Black and decker Jigsaw machine and need to do some intricate cutting ,Unfortunately the blades for this machine cut on the upward stroke thereby splintering and creating a rough edge alone the line you are cutting. The opposite side of the piece of wood (ply) that I am cutting is fine. The instructions with the machine tell me about the direction of cut and the workaround in the user guide is to simply use the opposite side to which you are cutting. but that does not help me here. I have tried several different blades and the results are always the same Can you get a blade that cuts on the downward stroke, thereby eliminating splinter or is this a peculiarity with this machine?