The ECO 450 Micro Motor System is a convenient hand held rotary machine. It includes a variable speed foot control pedal and can easily switch between that and the hand adjusted speed. It's durable, lightweight, and compact and has an automatic safety overload protection system. Has a forward and reverse rotation with less noise and vibration. Max Speed: 45,000 RPM 3/32" collet. Includes a handpiece holder and handpiece stand. Use with discs, buffs, brushes, and polishers. Max Speed: 45,000RPM 3/32" collet. Variable speed Foot Control Pedal. Easily switch between Hand Adjust Speed to Foot Pedal Mode. Durable, lightweight and compact. Automatic Safety Overload Protection System. Less noise and vibration. Forward and reverse rotation. Includes: Hand piece Holder and Hand-piece Stand. Use with discs, buffs, brushes and polishers.