Professional drain plug key set for commercial or occasional use 5pc sump drain plug key set 5pc but 10 different sizes Suitable for drain plugs on engine, gear box and back axles This set can also be used to remove brake callipers with hex and square bolts Essential plug key set to remove gearbox, rear axle, engine filler and sump plugs on many applications Also often used for diffs, gearbox plugs etc... Can be used with either a socket or a bar that goes through the centre of the bit (this is not included) Manufactured from chrome vanadium steel for strength and durability SET INCLUDES THE FOLLOWING • 1 x drain plug key - 3/8" + 11mm square • 1 x drain plug key - 8mm + 13mm square • 1 x drain plug key - 9mm + 5/16" hex • 1 x drain plug key - 10mm + 12mm hex • 1 x drain plug key - 14mm + 17mm hex