DeWALT? Breakaway? reciprocating saw blades are designed for the contractor who is tired of throwing away half used blades. with the Breakaway? feature, the user is able to remove the used section of the blade and then reinsert the unused blade back into the saw, the 6 in Breakaway? reciprocating saw blade breaks into a 4 in blade, which allows up to 1 in material to be cut, the 9 in Breakaway? reciprocating saw blade breaks into a 6 in blade, which allows up to 2 in material to be cut, the Breakaway? blades have been designed with a thick body for durability and feature a 14/18 variable tooth pattern for optimized cuts in a variety of metal cutting applications.