This is the Milwaukee M18 Super Sawzall. It arrived in 2018 with more power, more weight, and a new 12AH battery. It claims to match the power of a 15-amp corded version. It features variable speed control in both the trigger and a separate dial, as well as on/off orbital cutting, increased stroke length, and a new LED light & rafter hook. On the surface, it looks like a worthy upgrade over Milwaukee’s older version from 2012, and their One-Key model from 2016. To make sure, we gave it to AJ Del