DEWALT DW482B1 8-inch 18 TPI straight back bi-metal reciprocating saw blade; These blades are designed for cutting light to heavy gauge metal (such as threaded rod, unistrut, angle iron, pipe, conduit and more). The patented tooth design utilizes sharper tooth geometry for faster cut rates. An aggressive shank angle increases tooth contact, maintaining cutting speed as blade wears for longer blade life. This blade also features a specially formulated anti-stick coating minimizes friction and gum-up for smoother cuts. These are sold as a bulk pack of 100.