Works, but not a ridgid

I have always had ridgid cutters, but figured I would give this one a try. My boss can not use it. It works for me, but unlike the ridgid, it does not tighten easily. Tightening knob a 1/4 of a turn and it is already tight, but doesn't cut much deeper. It also tends to want turn to the side which can cause blade to break. We have the 2 of the Milwaukee 12v auto cut and love them, this just isn't the cutter for me.