I just used whatever the parts store had for rent at the time, which I think was a Lisle brand. Worked just fine.

As long as only the ridge is removed and nothing more, there is nothing wrong with them.

It's definitely very bad to make the top of the bore
a different/larger dimension than the bottom and create more taper....however, if it can't be disassembled easily with the ridge in the way...for instance....you have to do
what you have to do. Hand hone it afterwards.

The main problem is folks not understanding it and taking too much material off, but you won't have any problems.


Rich H.

Esse Quam Videri