Wera 8790 HMC HF Zyklop Sockets with Holding Function can, via a unique design, hold the fasteners within the socket. Assembly or disassembly becomes easy where fasteners are recessed or in awkward spaces or where overhead work is necessary. Shallow headed fasteners can also be retained. Made from chrome-molybdenum and incorporating off-point drive, these sockets are designed for intensive use. Sockets are also guaranteed for production use with non-impact power tools. \"Take it Easy\": the sockets are colour coded dependent on the size for fast tool selection; part of the wider Wera size identification system. The set features secure “Twist-Lock” tool retention for easy selection and safe storage in a structured textile pouch. Contains 10x 1/2” drive sockets. Includes sizes 10,11,12,13,14,15,16,17,18,19mm. Wera - Inventors of Zyklop.