We use AirStick to hold .032" thick x 12" x 12" Copper sheet for machining coils.
It works great and can be reused up to 3 times before coolant contaminates
it and will no longer hold down the stock.
Had two banana deadbolts strip out threads to loose was able to use less wire stripted and tap it down and use awl on center then tighten slowly. They work great if you’re careful with install.
I used many different types of IT extenders (Commercial Applications) and always had issues with them until I found this one. It just works every time - zero issues even at 250'. It is my go to product when I need IR.