The DeWalt DW4892 12-piece Reciprocating Saw Blade Set With Case provides a wide selection of blades for many common applications. The included case expands to hold 9-inch blades and is designed to fit in DeWalt power tool kit boxes for easy blade storage. This set includes three DW4802 6-inch 6-TPI woodcutting blades, two DW4811 6-inch 18-TPI metal cutting blades, three DW4809 8-inch 14-TPI metal cutting blades, three DW4803 9-inch 6-TPI woodcutting blades, and one DW4865 9-inch 10-TPI demolition blade.