DEWALT DWA41712 12″ 10TPI 2X Reciprocating Saw Blade 5pk features a taller high speed steel strip reduces breakage and maximizes tooth durability and life. An aggressive shank angle increases tooth contact, by maintaining cutting speed as blade wears for longer blade life. The patented tooth design utilizes shaper tooth geometry for faster cut rates and the specially formulated anti-stick coating minimizes friction and gum-up for smoother cuts. These general purpose cutting demolition blades are used by Fire and Rescue personnel because it is critical that the blades not break. 10 Teeth per inch. Bulk pack of 5pcs.