The Makita 4,000 RPM drywall screwdriver (model FS4200) delivers speed, power and ergonomics for drywall applications. It is ideal for driving drywall screws into steel studs. The FS4200 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 locater assembly with Makita's sure-lock feature is engineered for consistent screw depth. The FS4200 has an ergonomic grip for increased comfort, and a cast aluminum gear housing for less weight (only 3.0 lbs.) and increased durability. Other features include a depth locater holder for convenient storage during framing applications, a bit storage on the base of the grip to reduce downtime, and an LED light to illuminate the work surface. The FS4200 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.