The 200X Quick Switch Switchbox Blades are suited to cutting small square holes in masonry, such as electrical switches. Depth: 120mm (4 3/4”) Width: 7.2mm (9/32”) What's Included: 2 x 200X Switchbox Blades Only for use with the AS200X and BA200X To purchase the AS160, AS170 and AS175 Switchbox Blade click here .