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.
Nice video. Making me hungry..
I use a stick too if I have a fire but I just put the stick in the whole gutted fishes mouth. when the skin bubbles up and separates from the meat its done.
Lately I have been using a 20 year old outback oven over a firemug. After boiling youve got a good 15 minutes of baking coals left. Also one pencil sized twig every 5 minutes or so will yield longer baking/simmering times. This and lighting are the main reasons that I have kept a lower stoking hole.
cadyak, you have the market cornered on the stainless coffee mug stoves and the turned out really impressive. Great job! I have a few Harbor freight stepbits the have worked well so far but I have not really put them to the test of drilling stainless repetetivly. I don't know if there is a sharpener for step bits but I have an electric one for my regular drill bits. It basically has sharpening stones inside that grind the proper angle to the bit. I think of you everytime I see a bunch of those coffee mugs in the thrift store I am going to have to pick up a few and try my hand at it.
"Many of lifes failures are people who did not realize how close they were to success when they gave up".....Thomas Edison