An edger and string trimmer in one. Ideal for small to medium yards, the HART 20V 12-inch String Trimmer gets where your mower can not reach – mulch beds, gardens, fence lines, and even sidewalks. Featuring an auto-feed head and 10-12-inch cutting swath, the user can easily advance line and choose to have a larger cutting diameter or longer runtime. Switch from trimming to edging with ease by rotating the shaft. The auto-feed head works best with .065-inch line and spool available in stores and online. Hybrid technology gives you the option to use a 20V battery for easy maneuverability or an extension cord for unlimited runtime. Includes 12-inch string trimmer/edger, (1) 2.0Ah battery and fast charger.