General description Includes 13 high-quality carbon steel hole saws designed for smooth, clean cutting and precise holes. The set comes in a blow molded carrying case for easy storage and transport. Technical specifications Material: Carbon steel Hole saw sizes: 19mm, 22mm, 25mm, 29mm, 32mm, 38mm, 44mm, 51mm, 64mm, 76mm, 89mm, 102mm, 127mm Includes 2 mandrels with center drill Includes 1 Allen key Includes 1 mounting plate Includes 1 plastic carrying case Usage Suitable for cutting through hard and soft woods, plastic, plasterboard, and non-ferrous metals. For optimal performance, follow the special instructions for correct use to avoid issues with the mounting plate.