Adding Knife Serrations

M

Marc Cooper

Joined
Apr 7, 2019
Messages
60
Hey All

So, I've been toying with the idea of adding serrations to my knives. I don't want to do it freehand, so I found a really neat grinding wheel designed to make serrations. Here is the link:

https://www.knifekits.com/vcom/serration-wheel-diamond-coated-usa-made-shark-bite-1295-p-2607.html

My issue is that it is only a 4" Wheel and I have an 8" bench grinder. I think the chassis of my grinder will get in the way.

Has anyone tried mounting one of these to a 6" or 8" bench grinder? How do they preform?
 
Stick that on a bench grinder and it will be a $300 mistake. You need a variable speed and water spray grinder.
 
OK, that's the hi limit at which point the wheel shatters and send hot pieces thru your skull. What is the recommended speed? Based on metal thickness?
 
KnifeKits has been offering that wheel for years, but I don't know that I've ever seen anyone post anything about it who actually has one. I'd love to know what kind of machine they think you're supposed to use it on. I always assumed that they were originally for an industrial grade machine, but maybe someone at KnifeKits bought a few of the replacement wheels. I suppose you could make up a bench mandrel easily enough, and make it work.

If you look up recommend speeds for regular diamond wheels, they're normally around 5000 to 6000 SFPM give or take. Probably a little slower if you're running dry, which you can do with diamond abrasives, but they do wear out faster. It really depends on the materials you're grinding. For what this wheel costs, I'd definitely want to run it wet, and I'd want to have a controlled method of introducing the blade to the wheel.
Flood coolant wouldn't be super hard to set up I suppose, though it might get a little messy at 5000+ RPM. You'll definitely want some splash guards. :D

Wet OR dry, I don't really see that wheel lasting very long for grinding knife steels, at least not long enough to be worth $350. Again, I'd love to see a live set up of the wheel, along with some real data other than their generic "Do Not Exceed 10,000 RPMS")
 
Last edited:
Drew Riley said:
KnifeKits has been offering that wheel for years, but I don't know that I've ever seen anyone post anything about it who actually has one. I'd love to know what kind of machine they think you're supposed to use it on. I always assumed that they were originally for an industrial grade machine, but maybe someone at KnifeKits bought a few of the replacement wheels. I suppose you could make up a bench mandrel easily enough, and make it work.

If you look up recommend speeds for regular diamond wheels, they're normally around 5000 to 6000 SFPM give or take. Probably a little slower if you're running dry, which you can do with diamond abrasives, but they do wear out faster. It really depends on the materials you're grinding. For what this wheel costs, I'd definitely want to run it wet, and I'd want to have a controlled method of introducing the blade to the wheel.
Flood coolant wouldn't be super hard to set up I suppose, though it might get a little messy at 5000+ RPM. You'll definitely want some splash guards. :D

Wet OR dry, I don't really see that wheel lasting very long for grinding knife steels, at least not long enough to be worth $350. Again, I'd love to see a live set up of the wheel, along with some real data other than their generic "Do Not Exceed 10,000 RPMS")
Click to expand...

That is exactly my thought. I am considering buying one and setting it up, but I was wondering if anyone has ever tried it.
 
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