Milwaukee M18 FUEL 16 In. String Trimmer. PowerState Brushless Motor delivers more power than 31cc gas, maintaining speed in demanding applications without bogging down, enabling you to complete routine maintenance and thick brush clearing jobs faster. The motor has an advanced air-cooling system to sustain demanding applications for longer, increasing user productivity. This fixed shaft string trimmer is also more balanced and lighter weight, reducing fatigue and increasing control. Advanced electronics package allows the tool to reach full throttle in under 1 second, provides 3 speeds, and a variable speed trigger, maximizing productivity. RedLink Plus Intelligence enables full-circle communication between the tool and battery. Easy Load Trimmer Head provides the ability to load up to 25' of trimmer line in under 30 seconds. Optimized for use with an M18 RedLithium Forge XC12.0 Battery (not included) to maximize performance and run time.