• Designed to be used for drain plugs on differentials, transmission (auto/manual), transfer cases, and engines.
• Designed to fit the two most common female drain plug sizes: 3/8? and 1/2? square.
• Adding a socket to the wrench allows it to be used on male hex drain plugs.
• Can also be used on serpentine belt tensioners with female 3/8? or 1/2? drive.