Review on E-Z Lok SK20410 Helical Threaded Insert Kit, 304 Stainless Steel, #6-32 Thread Size, Pack of 10 by Joshua Flame

Very easy to use. I was a little worried as I wasn't sure I had tried this before and I needed to fix a punched hole on an expensive gun. I did a little research, bought this and some coolant and got to work. Using a drill press the whole process took about 10 minutes including a thorough triple check of alignment etc. The hole was drilled quickly, the threads were easily tapped and the helix was screwed in immediately. As long as you're careful, you can do this with a hand drill, and it's very easy!