Super Joint System (SJS) technology helps prevent gear damage caused by accidental wheel binding

Powerful 12.0 AMP motor design for increased output power in a more compact tool

Variable speed control dial enables user to match the speed to the application

Labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life

Electronic speed control maintains constant speed under load

"Tool-less" wheel guard adjustment for easy clamping

Soft start feature for smooth start-ups

Larger and improved carbon brush material for longer tool life