Review on 🔌 Premium 20pc High Temp Silicone Rubber Plug Kit for Powder Coating & Custom Paint- Extra Large Size- Supplies and Tools Included by Scott Gafur

I bought these to test car air conditioning subsystems. They're great for work. They're tough enough not to get blown up. If you don't have an ACCO style punch, don't try to poke holes in it. Silicone is very elastic, so it won't be torn off with a twist drill. You end up with a hole that leaks but can't accommodate the pipe you wanted it for.