A set of popular keys for draining differentials, sumps, axles & gearboxes on most modern vehicles. Includes 10mm (F) square and 10MM triangular in 3/8" Dr. Sizes: Hex: 8, 9, 10, 12, 14 & 17MM. Square: 7, 8, 11, 13 MM plus 5/16" & 3/8" imperial. Supplied in storage case.