Revolutionary design in two lightweight, perfectly balanced saw frames. Ergonomic handles reduce fatigue and provide greater dexterity. Patented blade-lock design eases blade insertion, maintains perfect alignment and eliminates wobble, which reduces blade loss during use. Precision-made at our Swiss factory of the highest quality spring steel with non-glare finish. Set crews can be used on either the left or right side of the frame, according to your preference. 2-3/4" (70mm) deep.