Power through the toughest concrete jobs with the Skilsaw 7" Medusaw Walk-Behind Worm Drive Saw (SPT79A-10). This walk behind concrete saw is the ultimate, ergonomic solution for scoring concrete in large-area applications. The large handle adjusts to accommodate any height and features a two-finger trigger for maximum comfort during operation. An ambidextrous side assist handle provides greater support and control, while a three-point line of sight ensures accurate cuts. A powerful, dual-field worm drive motor with added overload protection ensures maximum performance in the most demanding applications. Additionally, the Medusaw protects users by reducing silica exposure with integrated dust control in both wet and dry operation. A die-cast aluminum housing, guard, and foot along with rust-resistant zinc plated brackets and fasteners protect against corrosion for a long tool life.