Question about Delta JT160 Shopmaster 10 Amp 6 Inch Benchtop Jointer
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.
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Posted on Jul 23, 2009
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Posted on Jan 02, 2017
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