Drills clean wood, nail-embedded wood, plastic, aluminum, metal, cast iron and stainless steel. The Diablo 9 piece hole saw kit features (5) bi-metal hole saw cups, (1) piece SnapLock Plus mandrel, (1) pilot bit and (2) adaptor nuts (1/2" and 5/8") for quick and easy hole saw cup changes for maximum job performance. This new, high performance hole saw set delivers faster cutting performance and increased productivity versus standard bi-metal hole saws. Diablo's hole saws and ShapLock Plus mandrel system simplify the attachment process for fast and efficient hole saw mounting. 60 mm (2-3/8") cutting depth for 40 percent deeper holes in 1 pass and increased productivity. 1-size fits all mandrel, fits all Diablo hole saws from 5/8" to 6" diameter. Tool free plug ejection for fast material removal. Variable tooth design provides faster cuts with less vibration. Sizes included: 7/8", 1", 1-1/8", 1-3/8", 1-1/2" and 2". Also includes Mandrel, Pilot bit, 2 Adaptor Nuts and a heavy duty durable case for easy and convenient storage of hole saws.