Double ended steel keys with Hex and Square profiles. Suitable for drain plugs on engine gear box and back axle. Includes operating bar. Set 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.