Diablo, 9 piece, general purpose, carbide hole saw set, includes: 1" carbide hole saw, 1-1/8" carbide hole saw, 1-3/8" carbide hole saw, 1-1/2" carbide hole saw, 2" hole saw, snap lock plus mandrel, pilot bit, 5/8" threaded adaptor fits diameters 1-1/4" to 6" & 1/2" threaded adaptor fits diameters 9/16" to 3-1/16", 60 mm 2-3/8" cutting depth for 40% deeper holes in 1 pass & increased productivity, snap lock plus mandrel system for quick & easy change with no down time, 1 size fits all mandrel, fits all diablo hole saws from 5/8" to 6" diameter, allows operators to cut wood, nail embedded wood & metal using the same hole saw cup, 10x faster cutting in hard materials, tool free plug ejection for fast material removal, variable tooth design delivers faster & easier drilling with less operator effort, drills clean wood, nail-embedded wood, plastic, aluminum, metal, cast iron & stainless steel, for use with a drill press or hand held drill.