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Which downcut bit should I buy?

Posted: Mon Aug 17, 2015 6:56 pm
by Caesar S
Hi,

I'm wanting to work on:
- Plywood
- Solid Birch, Maple, Redwood, Cherry

Thickness to about 1/2", though 1" would provide more flexibility in creating notch and fits.

Yes, I've search for "downcut" but haven't found quite what I'm looking for.

Thank you, Caesar.

Re: Which downcut bit should I buy?

Posted: Mon Aug 17, 2015 7:26 pm
by Gadgetman!
You'll probably find that most 1/8" endmills are too short to cut 1/2" or thicker material.
(Normal 1/8" endmills cut about 12mm deep, slightly less than 1/2". They're also available in versions that can cut 17mm or 22mm, but the deeper they can cut the more stiffness they lose, and both cutting speed and accuracy quickly disappears. Not that I've seen 1/8" downcut endmills that can cut deeper than 12mm... )
I'd take a long, hard look at 3/16" or even 1/4" endmills.
Or 4 or 6mm endmills if you can use Metric endmills.

Re: Which downcut bit should I buy?

Posted: Fri Aug 21, 2015 7:08 pm
by Caesar S
I was hoping I'd get a specific brand model where to buy information :)

Anybody have info?

Thank you, Caesar.

Re: Which downcut bit should I buy?

Posted: Wed Aug 26, 2015 12:45 am
by TomDChi
I just got an Onsrud #57-240 through Amazon. It's a wood-specific downcut, 2 flute, 1/8" diameter and 1/2" long cutting, 1/4" shank (they also make the #57-244 which is the same thing with a 1/8" shank.) I've used it on MDF and it's been spectacular. I still need to try it on real wood. The 57-200 series is various sizes of downcut for wood. I'm definitely getting more.

Searching for "Onsrud" and a model number will turn up a bunch of places to buy from.

Re: Which downcut bit should I buy?

Posted: Thu Sep 03, 2015 12:36 am
by Caesar S
Thank you! I'll try it out.