MPQ1569 Features: * Bi-metal hole saws * Use for any situation * Use in most materials: Wood, plastic, aluminum, brass, cast iron, and amp, stainless steel * Variable pitch design (4-6 teeth / inch) reduces labor and amp, tool costs by cutting 45pct faster and amp, lasting longer than straight 6 pitch saws * Better chip clearance, less heat build-up, lower feed pressure and amp, smooth cuts * Bi-metal hole saws combine the toughness and amp, shock resistance of an alloy with the cutting ability of high speed steel * 0.19"" Thick heavy duty backing plate eliminates the need for driving plates and prevents drive pin holes from elongating * Saw diameters: 1.88"" * 1.75"" Cutting depth Color/Finish: * Packed in individual color boxes Warranty: * 1 Year warranty