Bosch 5412L 12" Dual Bevel Slide Miter Saw with Laser Tracking offers the most accurate laser tracking system available, in addition to Up-Front bevel and miter controls. Engineered for highest visibility, the Bosch arbor laser emits a bright, thin laser line that is visible throughout the cut, enabling the user to perfectly match the cut line to the blade kerf. The arbor laser is battery powered and actuates with the tool, prolonging battery life. An extra set of batteries is included. The Bosch 5412L 12 Dual-Bevel Slide Miter Saw with Laser Tracking gives professionals the first and only miter saw with unique upfront controls for added accuracy and convenience and unmatched performance