Camelot Satin Nickel Connect Smart Door Lock with Alarm and Accent Door Lever Marble Look Tile Lock area is reinforced to Lock area is reinforced to provide a solid mounting surface a perform and protect™ control feature Power Off® Advanced electronic overload protection shuts the tool off before it reaches overload or burn up Dust ejection system™ increases brush life and protects the motor from damaging particles entering the air intake that would otherwise abrade the motor Automatic turn off brushes shut down the tool when brushes need to be changed to avoid tool damage 3 position side handle provides improved ergonomics for specific applications Self aligning screw holes make installation easy and hassle free Built in alarm alerts you to potential security threats