STIHL offers another industry first with the TS 500i STIHL Cutquik® cut-off machine. Featuring the handheld outdoor power equipment industry’s first electronically controlled fuel-injection system, the TS 500i increases power by 17% and cutting speed by 15%, as compared to the STIHL TS 420. Powerful, lightweight and well-balanced, the STIHL TS 500i is designed for superior handling during the toughest jobs. The low-emission engine provides optimal torque throughout the RPM range and eliminates the need for a choke, simplifying the starting procedure. The standard electronic water control feature allows for easy and efficient water flow adjustment while cutting. The X2 air filtration system is virtually maintenance-free and maintains an incredible 99.96% cleaning efficiency.