Internal Pipe Wrenches are the tools to reach for when you need to remove broken threaded pipe ends without damaging pipe threads or surfaces. The unique “Cam Action" design provides a non-slip grip on the inside of nipples, pipes and fittings. The wrench can be turned either clockwise or counterclockwise. Our internal pipe wrenches are made of zinc-coated, heat-treated alloy steel for a long life and are available in three sizes.