The hole saw universal set Ø 19 - 57 mm in a practical transport case includes two adapters with hexagonal fittings for quick-change drill chucks up to 13 mm, including universal center drills, a ejector spring for quick removal of the cut-out from the hole saw, and 6 HSS BiM hole saws in common sizes for the sanitary sector. The hole saws achieve optimal results with cutting depths of up to 38 mm. Suitable for steel, aluminum, wood, and plastics.