AUTOMATIC DUST REMOVAL-The Excited Work drywall sander is equipped with a dust bag and has automatic vacuum system, so it can be self-cleaning with dust bag, to make a better dust removal performance. ERGONOMICALLY DESIGNED-The rubberized handle can increase the friction between it and the palm, making the machine not easy to slip from the hand, which makes it become a great tool for home DIYers and professionals alike. POWERFUL MOTOR-Powerful motor can provide sufficient power for the machine, expanding its use range: made to sand,grind and polish drywall,interior walls, exterior walls,ceiling, and floors; clearing floor residue;remove residue ,adhesive,paint coatings, adhesives and loose plaster; etc STRONG POWER & 6 VARIABLE SPEED-Excited Work electric drywall sander has 6 different speesd according to different application.Locking switch enable keep one speed without pressing continuously to reduce workload and more convenient to use