Additional Details ------------------------------ Product description: The Milwaukee 32-Pc. Shockwave Impact Duty Driver Bit Set Model 48-32-4004 features bits engineered for extreme durability and up to 30X life of standard driver bits. Made of proprietary steel and heat treated to control hardness, the Shockwave Impact Duty driver bits feature an innovatively designed geometric shock absorption zone to extend life. The forged tip allows for a secure grip and maximum contact, eliminating stripping or slipping. Designed for cordless tool users, the Shockwave Impact Duty accessories is ideal for heavy-duty impact applications and delivers a full system solution for all your drilling and fastening needs. , Case Included: Yes, Material Type: Steel, Metric Set: No, Pieces (qty.): 32, Standard: Yes, Accessory Type: Bits Geometric design provides shock absorption Proprietary steel and heat treated process for maximum strength and durability Forged tips for maximum grip Includes Phillips, square, Torx, slotted, hex and nut drivers, plus bit holder and case