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The Bluespot 7-piece 1/4"-3/8" Impact E Torx Sockets are manufactured from Chrome Vanadium for increased durability with a black phosphate coating to help against corrosion. The set comprises common sizes in 1/4" and 3/8" drive supplied on a handy socket rail for storage making them easy to find in any toolbox. Ideal for use with impact tools. Contents: 1/4" drive sockets E6-E7-E8 25mm depth 3/8" drive sockets E10-E12-E14-E16 depth 28mm