cadyak wrote:Yep those work nicely.
With a knockout bit you can get an extra 1/8" in diameter compared to the standard fat step bit. Unfortunately, the step bits are about 40.00 a piece, the knockout bits are near 50.00 and after about 2 or 3 stainless cups they are dull enough to deform the metal when you drill. Stainless is TOUGH. I use a punch to mark the hole and a split tip bit to drill the pilot hole, then the step bit to enlarge.
The split tips bits go real quick too. I have found that the really cobalt fancy bits dont last any longer than the cheaper ones.
I am actually running to Home DEpot sometime today and will probably spend 60-75$ on bits. everything I have now is no good from a single day of stovemaking...
Some of the thinnest ones are the hardest.
I use a solid carbide drill bits for stainless and it hold their edge well. I'm going to look for some stainless mugs and do some holes with the knock outs. this dayhiker firemug is super nice
Time for me to go out and burn some wood and fry some bacon.