DeWalt® DW4803 Taper Back Bi-Metal Reciprocating Saw Blades, 6 TPI, 9", 5-PackGeneral purpose blade for fast cutting in wood. Reinforced tooth for increased durability when cutting through nails and other foreign objects. +5 degree hook angle for fast, aggressive cuts. Specially formulated anti stick coating minimizes friction and gum up for smoother cuts. 5 Pack Reinforced tooth for increased durability when cutting through nails and other foreign objects +5 degree hook angle for fast, aggressive cuts Specially formulated anti