Combination tool for hammer drilling & screwdriving applications, 13mm keyless chuck, for drilling a variety of hole sizes, Automatic spindle lock for one-handed bit change, 2 gears for most materials & applications, Electronic variable speed, reverse & brake for total control, Quick adjustment 24 torque settings for total control when driving, 2 x 1.3 Ah Batteries, charger & bag included, Part of the One Plus system & compatible with all One Plus batteries, new & old.