I was cleaning my shop today and found a can that someone gave me years ago with twist bits, auger bits, hole cutting bits, etc. Going through it I found a set of center bits. I don't know much about this type of bits. Bob Rozaieski had a podcast on them, but I can't find much else on their use and utility. Is their any one that uses these bits?
I also found what I believe is a rosette cutter. The center point is too short to hold the bit in place. I am guessing someone filed it short and ruined it. Is there any ideas on fixing it?