The Makita 4000 rpm drywall screwdriver (model FS4200) delivers speed, power and ergonomics for drywall applications. It is ideal for driving drywall screws into steel studs. 6 A motor delivers 4000 rpm. The FS4200 is powered by a 6 A motor that delivers 0 to 4000 rpm and includes a large variable speed trigger with lock-on button for continuous use. The adjustable depth locator assembly with Makita's Sure-Lockā¢ feature is engineered for consistent screw depth. Comfort and Ease-of-use features. The FS4200 has an ergonomic grip for increased comfort and a cast aluminum gear housing for less weight (only 3 lb) and increased durability. 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 and an LED light to illuminate the work surface. Versatile design for a range of applications. 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.