J
Reaction score
0

Profile posts Latest activity Postings About

  • Motoman here. The original blade on my craftsman DYT 4000 48" had 3 "hollow ground blades Yes, like the straight razor. When you sharpen the blades a couple times the hollow is gone and you are faced with the same task as in sharpening chisels,knives, drill tips , etc. How to obtain an edge that is sharp ,but that will last.

    The blades are thick .080" ? The problem is as you proceed the thickness is an obstacle to a sharp blade and I alway take down about up to 1/8" of thickness behind the final, desiired cutting edge. This is sometimes referred to as the secondary bevel. The final edge is tapered down from the thinned bevel behind it. I do this on a hand grinder with a lowly grey wheel. But the technique is not acquired overnight. I make one or two uninterrupted passes for the secondary with fairly heavy pressure against the wheel and stop. Then tilt the blade infward to put the primary cutting edge on.
  • Loading…
  • Loading…
  • Loading…
Top