The Makita DPO600 Brushless Random Orbit Polisher has 2-modes of operation: Normal Mode: orbital action with forced rotation of the pad for rough polishing such as surface treatment; Finishing Mode: orbital action with free rotation of the pad for fine polishing. Whilst the soft start feature provides increased safety and control. There is also a lock-on function and ergonomic soft grip for reduced fatigue during long periods of operation. The tool can be rested upside down without damaging the workpiece, thanks to elastomer bumpers. Comes as a Bare Unit, No Battery or Charger. Specification: Oscillating Speed (Normal/Finishing Mode): 0-6,800/0-5,200/min. Strokes Per Minute (Normal/Finishing Mode): 0-13,600/0-10,400/spm Orbit Diameter: 5.