Nicked jointer knives.

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Forum topic by Suz posted 03-09-2008 01:09 PM 1085 views 0 times favorited 2 replies Add to Favorites Watch
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51 posts in 3750 days

03-09-2008 01:09 PM

I’m going to start a new thread on this because I don’t want to highjack someone else’s posting. But maybe now that we’re on the subject of jointers and nicked knives I’ll throw this on the fire! Is it the job of a jointer to provide a “finish ready” piece of material or is the jointer main function to provide a piece of lumber that is flat and square?
Same with a planer, its main function is to make the lumber exactly the same thickness throughout the whole length and width of the board.
Now, you take a scraper or a sand paper, their job is to smoothen the lumber to a state whereas you can apply the final finish.
Don’t get me wrong, I hate it when I put in a new set of knives in my planer or jointer and get a nick just as much as everyone else. But, am I going to get all anal about a small little ridge in my lumber and change out the knives right away? No, I’ll grab my cabinet scraper, hand scraper, or the sand-paper and get rid of the ridge on the face of the board. And if it’s on the edge of the board, I’ll move my jointer fence so use a spot on the knives that aren’t nicked.

-- Jim

2 replies so far

View Scott Bryan's profile

Scott Bryan

27250 posts in 3815 days

#1 posted 03-09-2008 02:44 PM

Hi Jim,

I tend to share your philosophy. I nicked one of my jointer knives within a week of putting the tool in service but still haven’t replaced the knives after 3 years. Offsetting them helps but I still get nicks showing up when I joint. Same is true with my planar knives as well. But overall both knife sets still do the job so I will just scrape and sand away the ridges. I am going to have to scrape and sand anyway so it really isn’t a major annoyance.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View Mark Mazzo's profile

Mark Mazzo

352 posts in 3906 days

#2 posted 03-09-2008 03:11 PM


I tend to share your philosophy here. I’ve had a nicked planer knife in my planer for about a year.

Even though I could shift the knife a little and eliminate the ridge that shows after planing (or even replace the blades with the set I have sitting in a drawer) I just keep using it as is. I almost always hand plane or scrap the surfaces on my stock anyway so, I have not bothered with it. Granted the nick is relatively minor and does not interfere with really anything – if it wrer worse I’d probably take care of it.

-- Mark, Webster New York, Visit my website at

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