Milwaukee has recently introduced new metal-cutting Sawzall reciprocating saw blades that they’re calling Double Duty Upgrade. These new blades are said to last twice as long as current generation blades.
Double Duty Upgrade Torch – tooth form has been optimized for maximum durability, and a Grid Iron stamped honeycomb pattern throughout body of the blade increases its rigidity. This is the blade you want for making tough straight cuts.
Double Duty Upgrade Thin Kerf – this short and thin-profile blade is optimized for maximum speed and long life. This is the blade you want for making fast, flexible cuts.
Both blades are also strengthened at a common weak point – their tangs where they connect to reciprocating saws – with a new Tough Neck deep stamp design that helps protect against breakage.
Double Duty Upgrade blades cost the same as current generation blades.