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1/4" cutting diameter on a 1/2" shank upcut spiral bit?

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Forum topic by wilyum posted 08-24-2017 09:07 PM 290 views 0 times favorited 3 replies Add to Favorites Watch
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wilyum

1 post in 1918 days


08-24-2017 09:07 PM

How would this bit perform differently than a 1/2” cutting diameter, 1/2” shank spiral bit? Would it cut through material quicker because it is removing less material with the smaller diameter? Also the smaller diameter would be turning quicker than the end of the 1/2” diameter bit. I am looking at cutting wheels out of 3/4” pine and can’t decide which would do the job quicker.


3 replies so far

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Loren

9633 posts in 3487 days


#1 posted 08-24-2017 09:18 PM

1/4” spiral bits are prone to breakage in
heavy cuts, so that’s an issue that will limit
the speed of material removal.

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jerryminer

811 posts in 1280 days


#2 posted 08-25-2017 01:17 AM

Besides the breakage issue, a larger diameter bit, in general, will make a smoother cut, with less chatter, than a smaller diameter bit.

And you’ve got it backwards—a larger diameter bit will have a faster rim speed than a smaller bit at the same RPM.

-- Jerry, making sawdust professionally since 1976

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hotbyte

989 posts in 2814 days


#3 posted 08-25-2017 01:23 AM

Can you cut them with bandsaw/jig sawand use template with flush trim bit to clean up?

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