The general purpose blades for the Arbortech AS170 & AS175 are used for general masonry cutting, including bricks and mortar. The blades have tungsten carbide teeth and are designed to cut to a depth of 4-1/2”. The Arbortech AS175 uses two 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.