The Milwaukee is 2 cutter SDS Plus for masonry and concrete. Combined with the right tool it would be used mostly by trade professionals. It has a centering tip, to ensure immediate spot drilling and pinpoint accuracy. It has optimised flutes offering fast drilling speeds, for maximum debris extraction. This allows you to use it at higher speeds for longer amounts time, which also creates less friction. Supplied as a single unit.Thin Flute – Ideal for maximum debris extraction.Thick base – For high stability.SDS+ - For much faster and effective drilling.