A really useful set of the most popular sized metric hex keys. Each key very conveniently folds back into the handle when not being used. Key Sizes – 2, 2.5, 3, 4, 5, 6,7 & 8mm dia. Precisely machined keys ensure minimal or no fastener damage. Rubberised soft grip handle for positive control & comfort. Satin finish keys for long term corrosion resistance.