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post #1 of 18 (permalink) Old 06-23-2013, 11:01 AM Thread Starter
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Default Kreg jig question

I am new to the forums and have used my Kreg pocket hole jig quite a few times. I have only used stock that is the same size for the joint. I have a project that is using two different thicknesses. 1-1/2" and 3/4". The holes are being drilled into the 1-1/2". The question is do I set the jig and bit for 1-1/2" (I think I should) and what length screw do I use?

Thanks,
Greg
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post #2 of 18 (permalink) Old 06-23-2013, 02:16 PM
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I think you will still keep it set for 3/4" and use 1 1/4" screws.
You could set if for 1 1/2" and go with the longer screws but you will not gain anything since you will still be putting the same amount of screw into the 3/4.
As always just set it up and do some testing before you hit the good stuff.
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post #3 of 18 (permalink) Old 06-23-2013, 05:13 PM Thread Starter
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Yeah, I'll test it out first. The jig instructions don't talk about mismatched sizes at all. I watched the videos as well and didn't catch any thing about it.
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post #4 of 18 (permalink) Old 06-23-2013, 05:31 PM
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Greg

When you are working with two different thicknesses you will want to set everything up and use the screw length for the thinner thickness of the two. For example if you are drilling your holes in a 2X4 and attaching it to a 3/4" piece you will want to set the jig and the depth collar for the 3/4" setting and use a 1 1/4" screws. If you are going the opposite way and drilling your holes into the 3/4" piece and joining it to the 2X4 you would set everything up the same, but you can use a little bit longer screw to give you some more strength.
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post #5 of 18 (permalink) Old 06-23-2013, 06:48 PM
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Hi Greg, welcome to the forum.

Kreg have a specific instruction to cover that. I will see if I can find it.


Screw size for DIFFERENT sized lumber - Kreg Jig Owners Community


PS: found this file hidden in the above link.
Attached Files
File Type: pdf ScrewSettings.pdf (20.3 KB, 909 views)

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post #6 of 18 (permalink) Old 06-23-2013, 06:50 PM
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Hi

I have 4 brands of pocket holes systems and I use 2" and 3" long screws now and then no big deal ,set it and forget it..

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post #7 of 18 (permalink) Old 06-23-2013, 07:22 PM
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James good file.

Thank you.
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post #8 of 18 (permalink) Old 06-23-2013, 08:46 PM
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Quote:
Originally Posted by greg.l View Post
I am new to the forums and have used my Kreg pocket hole jig quite a few times. I have only used stock that is the same size for the joint. I have a project that is using two different thicknesses. 1-1/2" and 3/4". The holes are being drilled into the 1-1/2". The question is do I set the jig and bit for 1-1/2" (I think I should) and what length screw do I use?

Thanks,
Greg
kreg screw size

About 5:10 into the video he talks about different size pieces of wood.

Al
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post #9 of 18 (permalink) Old 06-24-2013, 09:00 AM
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James I printed that baby out and I am putting it in the box with my screws.

Seems simple enough to just figure out, but as I add up the time spent doing that - well the pdf will come in very handy
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post #10 of 18 (permalink) Old 06-24-2013, 09:59 AM Thread Starter
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Thanks James. That is exactly what I needed. The chart is going to hang off the tool chest.
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