This ultra-versatile 100-PC Accessory Kit also comes with a durable, compact carrying case, a must for keeping all those dozens of bits from going rogue and disappearing into some unseen corner of your garage. This Craftsman 100-PC Accessory Kit comes complete with all the standard, general-purpose bits used in most household projects 100-bit set ensures that you always have the right tool at hand, so there's no need to interrupt your project and waste time and money tracking down each individual bit Kit includes power bits and insert bits to fit all your driving needs -and- Driving bits: Phillips, and Flat -and- Drilling bits for use on wood, metal, plastic and masonry Also comes with convenient compact carrying case for easy travel and organization Material: Hardened alloy steel for long-lasting dependability