The YF20vRX-RM provides a clean, scissor-like cut from the 5 hardened steel blades that helps your grass heal faster and overall, a better choice for your lawn’s health. The motor drives the rotation of the reel at 1000 RPM to cleanly cut each blade of grass as you walk along. The removable 2.0 Ah battery is easily recharged in the cradle charger. 4 preset heights allow you to adjust the cutting height from 0.5" to 2".