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Jointer blade installation ?.......model 103.21820..... spacers ? ....blade holder? when making a pass ,the part being machined bumps into the outfeed table

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YOu have the infeed table set far too low, and/or your knives are not set even with the height of the outfeed table. You should very rarely need to take a pass of more than 1/16 th of an inch on a jointer, unless the wood you're jointing is very rough cut or cupped/warped.
Please also see the answer given in this article for information about where to download a user's manual and find information on using and tuning up a jointer.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!

Posted on Mar 29, 2011

Testimonial: "your answer was i little slow in comming ....but thanks anyway"

  • efs_perpends
    efs_perpends Jul 30, 2011

    sorry for the untimeliness. I work 60 + hours/ week at a regular job. This is done in my spare time, which lately hasn't been much.



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1 Answer

My jointer not make the wood flat

You might have the outfeed table lower than the blade. If the outfeed table is adjustable, then you can check it easily with a steel ruler. With the Power OFF, lay the steel rule on edge on the outfeed table so that it hangs over the blade. Rotate the blade by hand in the forward direction. The blade just just barely touch the ruler. If the ruler is bumped up and pulled forward by the blade, then this is the problem. If your outfeed table is not adjustable, then you need to adjust your blades. If this is not the problem it may be that your wood is not uniformly dried.

Jul 25, 2012 | Delta Masonry Tools

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Delta jointer, where do i find the wrench to loosen the nuts for the blade

go to and with your model number you can download a schematic for this tool and also order the parts online. I tried finding them but there are too many jointers listed in the Delta category.

Apr 16, 2011 | Delta Jointer Blades 6 Inch Fits , Jet...

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Eg2175need manual for craftsman 6inch jointer model number 113 20 680

Go to and type in your model number. From there, you can order whatever you need for your jointer.

Feb 06, 2011 | Delta Jointer Blades 6 Inch Fits , Jet...

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I need to find blades to fit a delta 6" X5 jointer, model 37-866x

go to and under the service locator on the right hand side type in your information. The blade set number that I came up with is 37-658 and they show that as qty 3 in one package.

Mar 19, 2010 | Delta Jointer Blades 6 Inch Fits , Jet...

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Blade guard for Atlas 6'' jointer

I can send you pics of the one I made from plywood for this same jointer. If you're looking for an original I can't help you there.

Mar 09, 2010 | Masonry Tools

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Looking for blades for a 6 inch craftsman Jointer/planer. Model number 103 2066. Manufactured by King Seely. Sears Roebuck do not have but I am wondering if there is are generic blades that will fit. (I...

Most reliable sharpening services will be able to grind knives for your jointer that will work just fine. The key is to match the existing knives as far as thickness (guage) and height of the new knives. You want them to give you maximum life but not extend too far past the cutterhead when adjusted all the way down. I don't know about your machine, but on an 8" powermatic the tip of the knife shouldn't extend more than about .0012" above the circumference of the cutterhead. You can check this with a set of calipers and give the height to the sharpener, then just choose high speed steel or carbide and you're on your way.
If you check the overall length of the knives, sometimes they are slightly under the nominal length, and a 6" long knife could bump into the housing as the cutterhead rotates, so this is one other thing to check before you go ahead and order them 6" long.
But the short answer is, no problem. Just get a reliable sharpener to make them for you, buy a quality steel blank, and have him put a fine grit polish or hone on the knives when he sharpens them...

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!

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1 Answer

Need to find out haw to adjust cutter head and blades.

I called Jet and they e-mailed me a pdf file with the older manual. There is a toll free number on their website.

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2 Answers

Jointer Usage

A jointer has 2 uses. 1. it is used to make the edges of boards straight. If you look down the edge of any board, you will see that they are not straight. This is called a crown. by feeding the board threw the jointer, you will take the high ends down to make the board straight. This is necessary, excuse the spelling, for glue ups. 2. It is also used to flatten out a board. Same as the edge, the face could have a cup. By sending the face through the machine, this will make the board flat. Then you send it through the thickness planer to make the board symetrically even. You can use the jointer to make rabbets also, but there are other machine that will do the job better and faster, such as a router or a table saw, with or with out a dado blade.

Aug 27, 2008 | Marshalltown Trowel Company Marshalltown...

1 Answer


a jointer includes infeed and outfeed tables. A set of rotating blades is positioned between these two blades. A fence is set on one side of the jointer to serve as a guide. The infeed table and outfeed table are adjusted so that they are parallel, but the infeed table is slightly lower thereby exposing a small amount of the cutting blades. The woodworker then presses the lumber against the infeed table and pushes it onto the outfeed table; the rapidly spinning blades remove a small amount of material. If the wood is particularly warped, several passes on the jointer may be required.

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