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, 1 x 1.3 Ah Battery & charger included, Part of the One Plus™ system & compatible with all One Plus™ batteries, new & old.