Wera 8740 C HF Zyklop In-Hex Sockets with Holding Function via a unique design, hold on the socket-head fasteners. Assembly or disassembly becomes easy where fasteners are recessed or in awkward spaces or where overhead work is necessary. Wera’s Hex-Plus drive design allows up to 20% more torque to be transferred and prevents rounding out and fastener head damage. Made from chrome-molybdenum, these sockets are designed for intensive use and are also guaranteed for production use with non-impact power tools. The In-Hex 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 fabric pouch. The set contains:10 x 1/2in 60mm In-Hex Sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18 & 19mm..