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TOPIC: difference between concave cutter and knob cutter

difference between concave cutter and knob cutter 6 years 7 months ago #424

Hi everyone,

I've a question: What is exactly the difference between a concave and a knob cutter. They both make a hollow wound, to let the wound recover nicely. But why can't you use a concave cutter also as a knob cutter?

Thanks! :)
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Re: difference between concave cutter and knob cutter 6 years 7 months ago #430

howdy Youri,
basically you can use a concave cutter as a knob cutter but i have had times were the concave just wouldn't do the job. its for larger cuts i guess
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Re: difference between concave cutter and knob cutter 6 years 7 months ago #435

Okay,

I heard that everyone has a different opinion about this, that's why I was curious to ask it here.

Thanks for your reply :)
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Re: difference between concave cutter and knob cutter 6 years 7 months ago #436

I think, by looking at the blades of both cutters, that the knob cutter scratches out into the wood much deeper. I personally use it to work on a wound, for example to deepen it a bit more than a concave cutter would.

Im very much interested in other opinions; it seems a lot of explanations float around forums etc.
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Re: difference between concave cutter and knob cutter 6 years 7 months ago #438

Here you can see the difference between a concave and a knob cutter.
Thanks to Hank for the pictures! :)

picture 1: the concave cutter
picture 2: the knob cutter

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Re: difference between concave cutter and knob cutter 6 years 7 months ago #439

Great! This explains a lot
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