Chainsaw Repair

I think that's pretty much true with all abrasives .The ones I have are just throw aways they used to shine up stainless steel pipe after they heliarced  it .Probabley much more aggressive than should have been used on a saw cylinder .

I learned my lesson though .Actually I could have ran the soft stones in the Lisle micro hone except I didn't want to foul the stones with tramp aluminum .If I'd had used the hard ones ,impregnated diamonds they would have cut that nicosil faster than the flap wheel did . --kinda caught between a rock and a hard place --