The HART 1/2-inch Drive Deep Impact Sockets are an excellent addition to any DIY mechanics tool kit. These sockets are deep sockets, meaning they provide better reach and enhanced access for working in those tight, hard-to-reach areas found in and around your vehicles engine bay. These sockets are designed for and rated to withstand working with high-impact tools like impact wrenches. This set features sockets with a 6-point design for better grip on fasteners while preventing round-off in high torque applications. These sockets are forged from high-grade, impact-rated Chrome Vanadium Steel to hold up to the rigors of heavy-duty use. This Metric set includes the following 1/2-inch drive sockets: 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm & 24mm. This set is also covered under HARTs Limited Lifetime Warranty.