The Power-Deuce® is a multi-function brushing tool that prepares the inside of copper fittings and outside of copper tubing without having to change tools. Plus, if your drill quits, you can use it as a hand tool. It's fast and easy - saving time and money. The Power-Deuce® is a self-cleaning brush with rust proof, stainless steel bristles for plumbing and HVAC projects. The brush actually removes copper residue and any buildup when you you switch from a fitting brush to the OD cleaning brush. A heavy-duty ABS housing is impact resistant and protects bristles so they retain their shape and prolongs brush life.