The 7A 3X21 BELT SANDER is ideal for aggressive sanding applications.It comes standard with a dust box with a micro-fine filter which helps to provide you with a cleaner work environment.Its variable speed runs from 800 to 1,00 SFPM's to help you better control your accuracy and allows you to sand many types of materials.This Belt sander is good for removing lots of material, evening up door edges, preparing floors and much more.There is an adjustable auxiliary handle which allows for even more control.The Vibra Shield grip design allows for much more comfort during any sanding project.The LED work light illuminates your work surface while you are sanding.