How to use the Copper Key™:

The CopperKey™ only works in a clockwise direction. The female socket is "mounted" onto the pipe; the male brush component is inserted into the couplers or fittings. Mounting and dismounting are both done with a push-twist on or a pull-twist off motion, again in a clockwise direction. So . . . . Push-twist on, pull-twist off. It's that simple.

Both working heads feature ratchet action, so you can do the work in all kinds of cramped, limited, or hard-to-reach work spaces.

On first use, the working heads will fit tightly. This is normal. They will quickly "seat" themselves, and will outlive and outperform any other copper cleaning products.