The headjoint blades for the Arbortech AS170 are used for removal of mortar on vertical joints without overcutting and damaging surrounding brick work. The headjoint blades allow for more controlled and precise even in hard mortar, and cuts up to 3” in 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.