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Knowledge You Can Build On — Est. 1998

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Life expectancy

Posts

Life expectancy

#1

Life expectancy

Jorge Castaneda

of oneway coring bits?

I had some wood delivered in mid february, I've been roughing bowls, I had 4 coring bits, 2 brand new and 2 used little, now I have 4 worn out bits and only 64 rough bowls. That is quite an expense $128.00 plus shipping. By the time I have 220, bowls, my yearly average I'll have more than $500.00 spent in coring bits..

Is there an after market option? or what other bits could be used instead? I don't like the design of it, unnecessarily complex, a plain tapered rectangle would be better and last longer.

Re: Life expectancy

#3

Re: Life expectancy

RPE1

I don't understand. They are very easy to sharpen. There are great YouTube videos showing how to do it. If I can do it, you can

RP

Re: Life expectancy

#4

Re: Have you been touching them up?

Jorge Castaneda

Dick, yes I know how to sharpen them, it is easy, but they dull rather quickly with the wood I have at the moment. big old beech, some sugar maple red maple and some cherry, so they go to be touched often, even with the smaller sizes, I am lucky if I can do 2 without sharpening.

Re: Life expectancy

#5

Re: Life expectancy

Jorge Castaneda

RP,

I know how to sharpen them, but they dull in a hurry and have to be touched up often.

Re: Life expectancy

#6

Re: Have you been touching them up?

John Spitters

I acquired a used full set of the Oneway coring system.

When I acquired the set most of the tips were ground down to the halfway point of their useful life.

Since then with these same tips I have done at least 300 corings with the average size being between 15"-16" for the core outs plus smaller cores from these.

I am only now getting to the point where I will soon need to replace two of the knife tips.

So I'm suggesting that you are grinding off too much each time you sharpen.

What I do when sharpening is to first mark the cutting edge with a black sharply pen, once you see that the black has been removed that's as far as you need to go.

Re: Life expectancy

#7

I think Mike Hunter has retrofit carbide

Dick Coers

Mike fixed someone's McNaughton tools, contact him about the Oneway. He's pretty handy with that sort of thing!

Re: Life expectancy

#8

Re: Life expectancy

robo hippy

I never used it much, but for sure, I don't like those tips. The spear is supposed to break the fiber and then the sides scrape away the torn fiber. I had them send me a hardened bit that didn't have the spear ground into it yet. I tapered the sides a tiny bit, and kept the front square. I think it cut a lot better, not a little better but a lot better than their standard tip, and you don't have to take it off the knife to sharpen it. I have never found the top honing or grinding to give as good of an edge and burr as a coarse hone or light touch up on the grinder. The cutter is a scraper, and for all but the hardest of woods, they need a good burr to cut with. They are more aggressive when ground this way. When I commented to Oneway about how much better they performed, and that they were more aggressive, they said that was why they didn't sell them that way.

robo hippy

Re: Life expectancy

#9

Re: Life expectancy

Dave Paine

What is the diameter and thread of the screw. Perhaps it is possible to replace with a carbide cutter used in metal working tools. There are many shapes available.

Mike Hunter does a retrofit on the McNaughton knives with a diamond shape. Robo Hippy likes a triangle shape oriented with the flat cutting. These can be as cheap as a few dollars each.

The OneWay cutters do not seem to be as hard as carbide.

Re: Life expectancy

#10

Re: Life expectancy

Jorge Castaneda

Robo,

I use to use the McNaughton, but my hands are in bad shape, lost the grip on my right, so feel safer using

the oneway now but don't like it.