The dewalt dcf622 xr brushless self drilling screwdriver is ideal for the quick fitting of metal roofing and other sheet metal applications its versa clutch delivers a repeatable screw setting with minimum fuss fitted with a high torque brushless motor that drives screws up to 615mm diameter efficiently and effectively offering maximum run time and a compact tool durable ergonomic design and rubber grip for improved user comfort dcf622p2 2 x 18 volt 50ah li ion batteries dcf622n bare unit no bat