Making your own chamber reamers

[TomG]

Nice job on the reamer Rick and a great write-up.

The way to prevent scale is to keep oxygen away from the part as it's heated. If you have a furnace, you can fashion an air tight box for the part or use a stainless steel envelope which you can purchase just for that purpose. Since you are using a torch, you might try putting the reamer in a pipe nipple with capped ends. An old timers way to consume any oxygen in the heating receptacle is to place a piece of paper in with the part. As the paper burns, it will consume any oxygen that is present and keep scale from building on the part.

Tom