"The Milwaukee 4 1/2in. 11 Amp Grinder delivers best in class durability and power. High-capacity 120V motor with Advanced Airflow system runs at 11,000 RPM to handle the most demanding grinding jobs. Paddle grip with non-locking paddle switch. Speed RPM 11,000, Cord Length ft. 8, Wheel Diameter in. 4 1/2, Variable Speed No, Amps 11, Switch Type Nonlocking paddle switch, Side Handle Yes, Spindle Lock Yes, Wheel Included No. Advanced Airflow system maximizes airflow and reduces debris ingress, improving motor performance and life 5/8in.-11 spindle thread size Needle bearings Paddle grip with non-locking paddle switch 100 tool-free grinder - no wrench or screwdriver required Easy changing of all accessories Easy installation and adjustment of guard"