Using the Superior Tub Drain Wrench is easy. First, look at your tub drain and choose the end of the wrench that fits it best. You can use a 3/8” or 1/2” ratchet wrench and extension, an adjustable wrench, or a heavy - duty screwdriver to turn the wrench. To install or remove the tub drain, just fit the wrench in place and start turning. When working with 1/2” square plastic toilet seat nuts, use the appropriate end of the wrench in the same way. As for maintenance, after each use, wipe the wrench clean to keep it in good condition. Store it in a dry place to prevent rusting. Be careful not to use it with excessive force beyond the tested 100 ft. lbs. of torque, as this could damage the tool.