The Makita DLW140 Brushless LXT Cut-Off Saw is powered by 2 x 18V Li-ion batteries in series (not supplied) to supply energy equal to a 36V DC motor drive system. With tool-less adjustment of the guide plate, a quick-release vice and tool-less wheel change for less downtime between cuts. For added safety, there is an electric brake, large spark guard and load status indicator. As the load on the motor increases, the number of illuminated LEDs increases. When the motor is operated with excessive load, all LEDs on the load status indicator will blink. Supplied as a Bare Unit – No Battery or Charger. Supplied with 1 x Abrasive Cut-Off Wheel. No Load Speed: 3,800/min. Disc Size: 355 x 25.4mm (ΓΈ x Bore). Wheel Thickness: 3.0mm. Weight: 17.2kg (without battery).