The switchbox blades for the Arbortech AS170 & AS175 are used for cutting small holes for electrical switches. The switchbox blades are ideally suited to cut small square holes at 4-3/4” depth. The Arbortech AS170 uses 2 reciprocating blades and an orbital cutting action to cut faster than traditional reciprocating saws. The process also produces less airborne dust than typical brick, mortar and masonry cutting. Set of 2 blades.