Using the Klein Tools 53849 knockout punch is simple. First, select the right spot on the material where you want to punch a hole for your 1 - 1/4 - Inch EMT conduit. Place the punch on that spot firmly. Then, use a wrench to turn it. Thanks to its optimized design, you won't have to use too much force. When you're done punching, the split slugs inside will be easy to pull out. As for maintenance, keep it clean after each use. Wipe off any dirt or debris. You can also apply a little oil to keep it working smoothly. Just remember, this punch has a maximum capacity of 10 gauge mild steel, so don't try to use it on materials that are too thick. And it can cut aluminum, fiberglass, and plastic too, but always test on a small area first.
