I went to a store today, and they have EZ lap diamond bits that you can
chuck up to a drill motor or Dremel or whatever. $6 or thereabouts, and I'm
looking forward to going out tomorrow and attacking the chain saw.
I had a 2 x 4" EZ Lap diamond stone I purchased in 1974, and it sharpened my
diving knives beautifully. And those were used for cutting through very
heavy ropes that got caught in ships propellers. Finally bit the dust, and
was given a new one this Christmas past. $22, what a deal. I've been
running around looking for things to sharpen. So, when I saw this EZ lap
chainsaw bit, I grabbed it.