I recently drilled some holes in the cast iron top of my saw to install a new fence. When I was done, the tip of the drill bit was too dull to drill soft pine. (When I first tried using the bit on wood, I thought the drill was running in reverse).
Anyway, I figured that that with a little metal working knowledge I might be able to drill more than four holes before completely dulling a bit. Maybe it was the wrong type of bit? (It was from a dewalt set with a yellow/gold coating).
Can anyone recommend a basic metalworking book so I could read up on the right technique for this a future metalworking endeavors?. Hopefully it will include a chapter on sharpening drill bits too.
Thanks
Mitch