The DEWALT DWABK410SETCS 10pc BREAKAWAY Reciprocating Saw Blades are designed for the contractor who is tired of throwing away blades halfway used. With the BREAKAWAY feature, the user is able to break away the used section of the blade and then reinsert the unused blade back into the saw. This combination sets provide a selection of BREAKAWAY blades for common applications – The 6” DEWALT®BREAKAWAY reciprocating saw blade breaks into a 4” blade, which allows up to 1” material to be cut. The 9” DEWALT BREAKAWAY reciprocating saw blade breaks into a 6” blade, which allows up to 2” material to be cut. DEWALT BREAKAWAY reciprocating saw blades have been designed with a thick body for added durability. DEWALT BREAKAWAY reciprocating saw blades feature a 14/18 variable tooth pattern for optimized cuts in a variety of metal cutting applications. The thick kerf blade is designed for increased durability. This set includes an expandable ToughCase which holds blades and is designed to fit in power tool kit box. Includes: (3) 9” Breakaway Reciprocating Saw Blades; (7) 6” Breakaway Reciprocating Saw Blades; (1) Expandable ToughCase .