The Edge Sander will sand the areas that the drum sander cannot reach such as along baseboards & small rooms. The Silver-Line SL-7 is the leader in floor edgers for one reason…it works! Designed and engineered to stand up to the toughest job, the SL-7 delivers excellent results. It's built to give top performance on the toughest jobs. The Powerful motor delivers 3600 RPM for the fast, smooth cutting you want. The oversized vacuum fan and chamber work together to achieve superior dust pick up that will help keep the jobsite as dustfree as possible. The conveniently place light will help brighten dark corners and closets. Fast moving parts are electronically balanced for vibration free operation. The entire machine is perfectly balanced to handle smoothly and maneuver well with easy grip handles.