The Stub Wrench is a great tool for extracting broken plastic PVC and CPVC pipe, especially from garden sprinkler risers. The Stub Wrench has eight tapered flutes that fit snugly inside the broken pipe and engage for effortless removal. The comfort grip T-handle allows you to apply heavy toque to broken pipe. Tapered head from 1/2 to 3/4 in. For extracting broken plastic, PVC and CPVC plumbing. Ideal for replacing broken sprinkler risers. T-handle for extra torque. Cushion grip for comfort. Not for use on steel.