The Klein Tools 85514 Bonus Pack Multi-Bit Driver Set is a versatile and durable tool set designed for home and workshop use. Made of steel, this mixed set includes various drive types to suit multiple screw and nut sizes. The black color adds a sleek touch to the set, which comes in a convenient pack with the model number 85514. Ideal for professionals or DIY enthusiasts, this multi-bit driver set by Klein Tools offers quality and efficiency in one compact package.