Using upcut or down cut bits?

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Forum topic by MrRon posted 09-06-2013 09:42 PM 956 views 0 times favorited 2 replies Add to Favorites Watch
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4793 posts in 3267 days

09-06-2013 09:42 PM

When routing with a hand held router, you use an upcut bit when the cut doesn’t go all the way through the material and a downcut bit when going all the way through. Is that correct?

When using the router in a router table, which bit do you use; up or down cut? It would appear that either one will work?

2 replies so far

View Loren's profile


10476 posts in 3671 days

#1 posted 09-06-2013 09:48 PM

Upcut bits pull the chips out of a mortise, so generally
for mortising and grooving cuts they work well.

I use a downcut bit on my overarm router because
it pushes the work away from the cutter. The upcut
bit is unsafe in this application (no base plate on a pin
router) because it will lift the work off the table.

View GarageWoodworks's profile


531 posts in 2180 days

#2 posted 09-06-2013 09:53 PM

Upcut pulls chips out as mentioned above and are more prone to chip-out at the top of the mortise.

Downcut bits leave a much cleaner cut at the top which makes them ideal for doing inlay.

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