Easy core cutter sharpening

[John Hicks]

I use my easy core quite a bit; but I've found the standard cutters dull quickly and I have to sharpen them. I tried the oneway holder sharpening jig for these cutters; but there is a fault with the design. When I try to sharpen them on my grinder, it seems to always nick one corner; this make the cutter pretty much garbage. You can see what I'm talking about in the photo. (upper left part of the cutter) I'm not the best with a card sharpener either. I'm wondering if the oneway carbide bits are worth it?

 

[robo hippy]

You are supposed to hone or sharpen the top surface of the cutter. I think it is a very poorly designed cutter. Many have opted for the carbide set up from Hunter Tools.

robo hippy

 

[Tim Tucker]

John-
The Kore Pro Cutter set up from Mike Hunter is...well..it is pricey. BUT it is also the greatest advancement in coring I have seen. Period. I cannot believe just how easily it cuts thru the wood and turns coring into something that is not physically or mentally stressful.

 

[Keith Mombourquette]

John
I have replaced all 4 cutters with the Oneway carbide. They are a very big improvement. I have cored about 30 times with the most used one, and it is still sharp. When needed, I plan to touch them up with a diamond hone. From my reading the Hunter system is amazing, but pricey. What I did was order 1 replacement carbide and tried it before I bought 3 more. By-the-way, they will sell the knives with carbide instead of hss. This is slighly cheaper that buying separately.

 

[Leo Van Der Loo]

John here is a good article by Ron Kent of how to sharpen the cutter tip in different ways, and a few links to other articles, I recommend his articles highly.

3 Ways Sharpen OneWay Cutter Tip Easy-Core Coring System - Turn A Wood Bowl

The cutter tip for OneWay Easy-Core Coring System is a mighty cutting dynamo that needs to be sharpened frequently. The BEST way to sharpen the cutter is...

turnawoodbowl.com

 

[Dave Bunge]

I've also switched all my cutters to carbide and have been very happy with the results, haven't had to sharpen any yet. I bought mine from AZ Carbide https://azcarbide.com/product/1way-coring-carbide-cutter/

The carbide bits are slightly taller than the HSS bits. I had to adjust (lower) my knives and support fingers slightly to compensate.

Before I got the carbide cutters, I was sharpening the HSS bits a lot, using the sharpening jig from Oneway. I have to say that I never had any problems with nicking the corners like the OP posted. I don't think there is any inherent flaw with their sharpening jig. But it sure is more convenient with the carbide bits not having to sharpen at all (yet).

 

[John Hicks]

Depends on what size wheels are on your sharpener

 

[Bill Blasic]

It is easier to sharpen the oneway cutters with the grinder off and turning the wheel by hand.

 

[John Hicks]

I think next time I sharpen them I'll try my proedge as the platen is flat.