I have problems with this. The blade is bent when tightening the screw. Because of this only the part of the screw is in contact with the blade. It is the part towrds the edge so it wants to push itself, and the chip breaker with it, away from the edge. I can pinch it pretty tight to hold it in place and i guess i could use a vise grips pliers to make sur it does not move. But it will still not hold well and any tapping of the blade while setting and the breaker slides back. I can not adjust the blade in reverse accurately. Should i be able to? I give light taps and nothing happens and as i give progressively harder taps nothing happens till suddenly it slips below the sole and the wedge is loose.