Size Information: 3/8-inch, 1/2-inch and 3/4-inch. Each internal nipple wrench is 3.7 inches (95 mm) long. These nipple extractors fit the pipes with the same diameter. Please make sure that your pipe inner diameter is the same as our tools before use

No Thread Damage: Internal pipe wrench set is ideal for removing broken threaded pipe ends, plugs and fittings without marring, scratching or denting pipe surface or threads

Cam Design: The machined and heat-treated cam forms a strong internal grip on the broken pipe, making it easy to catch pipe fragments

Operating Instructions: Use a fixed or adjustable wrench to turn the hex body for increased torque. Turn counterclockwise to loosen the fitting or pipe, and clockwise to tighten. Warm Tip: Operate slowly and smoothly to avoid wrench slippage

Wide Application: The pipe nipple extractor set with exposed threads can remove and installs short nipples in heater hose fittings, plumbing and HVAC connections(not suitable for PVC or bronze pipes)