Does rabbeting bit height matter?

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Forum topic by Vrtigo1 posted 06-08-2011 05:35 PM 1142 views 0 times favorited 4 replies Add to Favorites Watch
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434 posts in 3229 days

06-08-2011 05:35 PM

I’m doing a project which requires me to cut a rabbet on the inside edge of a frame, so I’m looking at rabbeting bit sets.

I found the following set on Amazon which has good reviews:

I see that they also sell the same bit set in 1/2” and 3/4” bit heights. The prices are all about the same. So my question, is there a reason why I wouldn’t want to buy the taller bits? It seems to me that I could just raise/lower the bit to achieve the rabbet height that I need, so the taller bits would give me more flexibility. Am I missing something? If that’s the case, I’m not sure why anyone would buy the 1/2” or 3/4” tall bits.

4 replies so far

View Pdub's profile


924 posts in 3417 days

#1 posted 06-08-2011 06:19 PM

I use my bit jsut like you are suggesting. I raise or lower it to get the height thatI want. So, if you are missing something; I’m right there with ya!

-- Paul, North Dakota, USAF Ret.

View Gpops's profile


248 posts in 3682 days

#2 posted 06-08-2011 06:55 PM

The only problem I have found is that if you mount the bit in a routertable sometimes you can’t lower the bit enough to get the cut you want. I have had that problem with long mortise bits when using them to cut dado’s.

View Richard's profile


1922 posts in 2928 days

#3 posted 06-08-2011 09:19 PM

Gpops, wouldn’t you have the same issue when handheld that you couldn’t raise the bit high enough to get the right cut? I could see how a longer bit could cause this, so a shorter bit would be the solution in that case.

View Vrtigo1's profile


434 posts in 3229 days

#4 posted 06-08-2011 11:47 PM

Gpops, that is what I was thinking, but when we’re only talking about a difference in bit height of less than an inch, and only a 1/4” difference between the 1/2” and 3/4” bits, it seemed like that couldn’t possibly be an issue.

I have a Mast-R-Lift in my router table and am positive I can get the router low enough to do what I need. Not positive about my handheld routers but I would imagine they should be fine too. I went ahead and ordered the 1 3/8” bit, so glad to see that I should be fine.

Thanks All

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