With the Hikoki 754255 hole saw set, you cut clean, accurate circular openings through wood, plastics, and various metals with complete control. Unlike standard bi-metal hole saws that wear quickly on abrasive surfaces, these tough carbide-tipped teeth deliver superior wear resistance and stay sharp longer. The comprehensive 15-piece set equips you with thirteen hole saw diameters ranging from 19 to 76 mm and two arbors, ensuring you always have the right size ready for running pipes, installing recessed lights, or fitting junction boxes. Everything stays organized and fully protected on the move inside the sturdy carry cassette.