The Milwaukee Tool M18 Sawzall Reciprocating Saw, No. 2621-22, uses in-line cutting action to provide control and fast starts in metal. According to the company, the cordless tool is designed to make cuts up to 30 percent faster than comparable reciprocating saws and deliver up to 50 percent more cuts per charge. This model uses electronic overload protection for the motor and battery and features an all-metal gear case and gearing. At 19" long and 8.9 lbs, the tool has an ergonomic design, a Quick-Lok blade clamp and a variable speed trigger. Two M18 Li-ion battery packs, a multi-voltage charger and a carrying case are included. It also is available with one battery (No. 2621-21) and as a bare tool (No. 2621-20).