The Wera 8740 C HF Zyklop In-Hex Sockets have a unique design with a holding function 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 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. Contains: 6x 1/2in Drive 140mm Long In-Hex Bit Sockets: 4, 5, 6, 7, 8 & 10mm.