General description A comprehensive set of quality 3/8" square drive oil drain plug keys with a tommy bar, made from satin finished chrome vanadium steel. This set includes various sizes to accommodate different oil drain plugs. Technical specifications Product Type: Oil Drain Plug Key Set Number of Pieces: 17 Tool Material: Satin finished chrome vanadium steel Male Square Sizes: 7mm, 8mm (5/16"), 9mm (3/8"), 10mm, 11mm, 12mm, 13mm Female Square Size: 10mm Male Hex Sizes: 8mm, 9mm, 10mm, 12mm, 14mm, 17mm Male Triangular Size: 10mm Other information