I liked the spaciousness of this set as I bought it with the Bosch 12v Drill/Impact Wrench Combo Kit. Unfortunately, both the screwdriver and impact tool use a 1/4" hex socket, which I was missing when I started drilling the hole. Drill bits (various sets: wood, metal, masonry) don't come with the 1/4" Recording compatible and must be clamped with a drill chuck. the beats have served their purpose, although life seems fleeting. The case is really good so my purchased bits fit next to it in most cases.