Makita’s FS4000 Drywall Screwdriver (0-4,000 rpm) delivers speed, power, and ergonomics for drywall applications. It is ideal for driving drywall screws into steel studs. 6 AMP Motor Delivers 4,000 RPM. The FS4000 is powered by a 6 amp motor that delivers 0-4,000 rpm and includes a large variable speed trigger with lock-on button for continuous use. The adjustable depth locator assembly with Makita’s Sure-Lock feature is engineered for consistent screw depth. Comfort and Ease-of-Use Features: The FS4000 has an ergonomic grip for increased comfort. Other features include a depth locator holder for convenient storage during framing applications, a bit storage on the base of the grip to reduce downtime. Versatile Design for a Range of Applications: The FS4000 is engineered for hanging applications. It is ideal for drywall contractors, acoustical contractors, plaster contractors, maintenance, and general contractors seeking a best-in-class drywall screwdriver. The FS4000 is just another example of Makita’s commitment to innovative technology and best-in-class engineering. About Makita Drywall Screwdrivers: Makita drywall screwdrivers deliver speed, power and ergonomics for framing and drywall applications. Makita’s drywall screwdrivers are powered by Makita-built motors with a range of rpm capabilities. Features include adjustable depth locator assembly with Sure-Lock engineered for consistent screw depth, and a large variable speed trigger with lock-on button designed for continuous use. Makita drywall screwdrivers are ergonomically designed with less weight for increased comfort.