Use the HART PowerFit Edger Attachment to transform your string trimmer into a powerful edger. Adjust the depth on the 8 in. serrated blade to help you create professional edges on different areas in your yard. Get the most out of your dual serrated edging blade by reversing it when dull to make use of fresh cutting edges and extend the life of the blade. This edger attachment can be used with HART, Black Max, RYOBI, Toro, Weed Eater, Troy Bilt, Murray, Poulan Pro Trimmers and other universal brand fit power heads and trimmers.