Double Ended Steel Keys With Hex And Square Profiles Suitable For Drain Plugs On Engine, Gear Box And Back Axle. Includes Operating Bar. Contents: Hex: 10mm X 12mm, 14mm X 17mm, 5/8" X 9mm Square: 3/8" X 11mm, 8mm X 13mm Key Length: 53mm Approx Operating Bar Length: 150mm Approx