Stihl FS 56 RC-E Straight Shaft Line TrimmerMore power, less emissions. The FS 56 RC E trimmer features a high performance, fuel efficient engine that runs cleaner and smoother and provides about 5% more power than the FS 55 R. When its not squeezing every last ounce of performance from its upright fuel tank, this straight shaft grass trimmer keeps the weeds at bay, thanks to its AutoCut cutting head. This STIHL trimmer also features our Easy2Start technology, making starting nearly effortless.