Jain Irrigation Inc. Key Punch

The Key Punch is an inexpensive punch for use on small systems. Hold between your thumb and index finger to pierce tubing with sharp tip. Unfortunately, the plastic tip has a limited lifespan and will begin to blunt after 100+ uses and become more difficult to use. The punch tip is a good size when using 1/8" barb fittings. Punch tool also has a 5/16 hex key in the handle.