flat or hollow grind, which do you prefer?

  • Thread starter Thread starter db
  • Start date Start date
Gold medal: flat sabre grind in puukko style
Silver medal: full flat grind
Bronze medal: convex grind
Honorable mention: hollow grind

Just yesterday whittled some hardened pine. I used a carbonsteel puukko, Spyderco Calypso, Spyderco Moran, Kershaw big Starkey Ridge and Random Task. All were shaving sharp but Moran and Calypso were the best shavers (before this trial they had cut only hair from my arm). Result you can see above. Difference between the first three was not big but clear. Any one of these knives would have done extremely well in shallow cuts to the point that I probably couldn't tell the difference. Performance must be tested in deeper cuts IMO. Maby a thinner bladed hollow grind knife would have done better but for wood working it still is worst.

The handles had effect to results. How much? I can't tell.
 
In order to really see a difference you need to cut something which offers significant resistance for a depth greater than the blade width. About the worst thing I had to cut lately was some old (10-20 years) rubber tubing that was 1 to 2 inches thick. I could easily feel the difference between a convex and flat bevel let alone a hollow and flat grind.

-Cliff
 
Although I admire the grind on my Sebenza and feel it is up to the challenge, I still favor a flat ground blade.


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The vague and tenuous hope that GOD is too kind to punish the ungodly has become a deadly opiate for the conscience of millions.

*A. W. Tozer

2 Cor 5:10
 
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