Jointer knives

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Forum topic by Iggles88 posted 04-23-2012 02:02 AM 5340 views 0 times favorited 8 replies Add to Favorites Watch
View Iggles88's profile


247 posts in 3097 days

04-23-2012 02:02 AM

I have a pretty new jet 6” jointer. Only like 4 months but I made the mistake of not moving my fence when edge jointing and dulled my blades much sooner then I should have. Point being I need to get a backup set while waiting for my blades to be sharpened. I want to buy the Freud blades but I read a review about them not fitting. Every set of knives I’ve looked at are 1/8” thick. Not understanding why the Freud blades wouldn’t fit I measured my blades and they’re only a 1/16 thick so where can I find a set of blades to fit the jet jj6csx jointer. I know jet makes a replacement set but they are 85 dollars and have gotten terrible reviews. I really need to get my jointer back up and running so any advice would be great. Thanks in advance.

8 replies so far

View Dusty56's profile


11858 posts in 4424 days

#1 posted 04-23-2012 02:54 AM

-- I'm absolutely positive that I couldn't be more uncertain!

View gillyd's profile


136 posts in 3382 days

#2 posted 04-23-2012 11:49 AM

Aren’t those blades double sided? If they are in the meantime you can flip them around while you find a backup set.

View jmos's profile


917 posts in 3106 days

#3 posted 04-23-2012 12:45 PM

Yes, your knives are two sided, you can flip them.

I’ve heard good things about the global knives.

One question, are your knives the quick set type? If they are, that’s a different animal than the plain (non-quick set) knives and are not interchangeable.

-- John

View Chris 's profile


1880 posts in 4727 days

#4 posted 04-23-2012 01:15 PM

What makes them “Quick Change” versus the normal blades?

-- "Everything that is great and inspiring is created by the individual who labors in freedom" -- Albert Einstein

View syenefarmer's profile


556 posts in 3817 days

#5 posted 04-23-2012 03:30 PM

Are you certain that your jointer takes 1/16” thick knives? I also own the Jet JJ-6CSX and according to my Owners Manual the knife size is 6-1/16”x5/8”x1/8”T. I get my replacement knives from Holbren, their Model #STB4625125. Although they are 1/16” shorter than the OEM knives they work and are a fraction of the cost of Jet knives and the quality is first rate.

View bobdurnell's profile


317 posts in 4633 days

#6 posted 04-23-2012 03:37 PM

Iggles88—I have the exact same jointer and the cutter head will accept any 6inch knife, and they are 1/8inch in thickness. Unless your model is a special one I see no reason why you can’t use regular jointer knives. My second set of knives if from Infinity. I regularly move my fence to use all of the knife and when I get a coupla inches from the outside edge I have them sharpend and replace them with the back up set using the maga set jig. Good luck. bob

-- bobdurnell, Santa Ana California.

View jmos's profile


917 posts in 3106 days

#7 posted 04-23-2012 03:43 PM

The quick set knives (for the CSDX model) has a cutout in the knife where a cam rides. You can turn the cam to adjust the height of the knife, in theory making them quicker to set. I don’t know if they help versus a regular knives, they are still a PITA to set, but maybe less than others.

The quick set knives are lot harder to find, and more expensive, and you can’t use the regular knives in their place, which is why I asked, just to save a potential problem.

-- John

View Iggles88's profile


247 posts in 3097 days

#8 posted 04-23-2012 08:10 PM

My knives aren’t double sided, I assumed they were but that’s only for the quick set knives. I took mine out thinking I’d just turn them around but found they were only single sided causing me to need to get a second set. I figured the 1/8” knives could be used but when I seen that review that they didn’t fit I had to ask. I ordered Freud 6 1/8 3/4 1/8

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