The powerful SENCO^® DS300-AC is designed for high-volume, high-speed screw applications. Professional remodelers, contractors and DIYers will appreciate the convenience of the 3300 RPM collated screw system, which increases productivity by eliminating the need for handling loose screws. The DS300-AC has corded power to drive 1-1/4" — 3" screws into even the toughest work surfaces. With the built-in extension, you can adjust the tool to the proper height, saving your knees and back.