Power tools kits with a delta sander

Delta grinder

— in fact, they are a kind of vibration grinders, but differ from them in the shape of the sanding sheet: it is triangular, resembling the Greek letter “delta” in shape (hence the name). Due to this, as well as their small size, these machines are well suited for working in hard-to-reach and difficult places, such as corners, edges, curves, etc.