Compact and lightweight design. The 4-1/2" Angle Grinder is the smallest in Milwaukee's extensive grinder line and is the only tool in its class with a tool-free burst-resistant guard. The built-in advanced airflow system includes Debris Baffles and Multi-port exhaust, extends tool life. 7.0A, 5/8" to 11" spindle thread. 11,000 no load RPM. Weight: 3.5 lb.