4-1/2". 11.0A trigger grip grinder with lock-on delivers performance, durability, and ease-of-use features for industrial users. The trigger grip handle with lock-on increases productivity by providing optimal control, reach, and leverage for a variety of applications. The 11A, 1400 MWO motor provides high overload protection and power for the toughest jobs. Milwaukee's built-in advanced airflow system, including debris baffles and multiport exhaust, extends tool life. The 3-position soft grip handle gives the user placement flexibility when performing different applications. The top handle position is ideal for cutting. The tool-free burst-resistant guard allows the user to quickly adjust the guard without the use of a tool. External brush doors reduce service time. Includes side handle, Type 27 guard, spanner wrench, flanges, and 5 year warranty.