Description: Variable speed dial allows the user to adjust the speed for the application. Small grip perimeter provides comfortable control and easy manoeuvrability. Electronic feedback circuitry provides consistent power to maintain RPM under load. 6.7 amp motor powers through even the toughest applications. Specifications: Collet Chuck: 1/4″. Maximum Wheel Diameter: 1″. Amps: 6.7. No Load Speed: 7,000 – 29,000. Length: 16″. Weight: 4 lbs. Soft Start: Yes. Electronic Speed Control: Yes.