|: Wow, you are really determined! I know how it is to work some materials with inadequate tools. I have often cut screws with a jigsaw or drilled holes into boots with a manual drill. At least I have a power drill now!
Reminds me of how I was cutting pieces of rubber from the sole to make room for some nuts last year. The duller the knife, the more dangerous it is. I've still got that scar on my hand, and it'll stay for the time being. I hope that I'll never forget how I got it.