The Lagmaster Acoustical Plus is an improvement on the original Lagmaster. It utilizes interchangeable plug-in heads to convert the tool to suit multiple applications with ease. The Lagmaster A+ comes with three heads, the LMP Base, LMP Wire Plug W (Welded) and LMP 1/4 Hex Plug. Install threaded rod, ceiling wire or use the pole as an extended nut driver with the 1/4 Hex Plug.