MILWAUKEE® revolutionized the power tool industry in 1951 when they released the SAWZALL®, the first portable electric saw with a reciprocating mechanism. The SAWZALL® and more recent HACKZALL® are both still defining MILWAUKEE® tools to this day. Both of these tools are supported by a full line of SAWZALL® blades for cutting all types of materials. Product Description The TORCH™ Metal Cutting Blades with the DOUBLE DUTY UPGRADE™ feature a tooth form optimised for the longest life and maximum durability. These blades feature the TOUGH NECK™ which is engineered to protect against tang breakage and delivers the strongest reciprocating saw blade tang on the market. They also feature GRID IRON™, a stamped honeycomb pattern throughout the body which greatly increases the ridgiity of the blade making it the stiffest metal cutting reciprocating saw blade on the market. These blades are ideal for making tough, straight cuts.