Ryobi r4sd l13c screwdriver has up to 5nm screwing force and up to 92 screws per charge making it a highly versatile tool has a quick change hex chuck for easy bit changes and a super bright led work light for illuminating dark work spaces accessories included are ideal for flat pack furniture 1x hex4 and 1x pz2 comes with 1 x 4 volt 13ah li ion battery and 1 x charger specification bit holder 635mm 14in no load speed 0 180min torque 5nm chuck keyless weight 04kg