The HART 31 Piece Impact Driver Bit Set with Magnetic Sleeve is a versatile and comprehensive tool set designed for use with impact drivers and drills. With 31 pieces included in the set, this collection of metal bits is suitable for a variety of applications. The set is compact and easy to store, making it a convenient addition to any workshop or tool collection. Made in China, these bits are durable and reliable for both DIY projects and professional use.