Excellent design and build quality produces a hex key set that's highly functional and durable but without excess size or weight. Includes wrenches in SAE: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16 and 1/4"; Metric 1.5, 2.0, 2.5, 3.0, 4.0, 5.0 and 6.0mm; TORX T5, T6, T7, T8, T9, T10 and T15. Average usable wrench length 1-3/4", individual set 3-1/4"L x 1-3/8"W x 3/8"H; average weight 3.0 oz.