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Can a Kreg joint corner be rounded of with 1/2" router bit? Will the bit hit the joint screws?

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I don't know the answer, but you could always test it. Disassemble a test joint and round it off. Then reassemble and see if the screw protrudes. 

Not only do I not know the answer, I'm not exactly sure of the question.

Are you asking about a 1/2" radius roundover bit or a 1/2" shank bit?  You can soften the edges of a Kreg joint but it depends on the radius of the bit how deep you are going to get into it. Another option would be to do the roundover before assembly but if the radius is too much, you will still expose the screw. It would also help to know just exactly what you have in mind, including stock thickness. You will obviously have more latitude with 1-1/2" stock than with 1/2" stock.

i am guessing you are meaning this (see pic) in which case a 1-1/4 screw would be too long.

 

Sorry for not explaining myself well. I am planning on joining two 3/4" thick boards with 1-1/4" screws. I want to round off the edge of the corner with a router roundover bit. I think maybe your suggestion to test it out would be the best. I will start with a 1/4" roundover and then try a 1/2".

Inserting the screw, so the point is ''inward''---away from the end of the piece, 

will allow adding a rounded corner/edge, without exposing the screw point.

Gotcha, Mandodad's drawing shows it pretty well. You could adjust the stop collar so the pocket isn't quite as deep, tradeoff is fewer screw threads in the piece you are attaching.  Use a shorter screw, same problem.

I would do a test piece. Attach two pieces of scrap as you are planning on your workpiece. Remove the screw and run the roundover. If you unearth the hole the screw made you know it won't make it. Evem if it does pass that test, I would be inclined to do the rounovers before assembling. Router bits are expensive.

"Inserting the screw, so the point is ''inward''---away from the end of the piece,

will allow adding a rounded corner/edge, without exposing the screw point."

I don't understand this one ken - putting the screws in from outside the box??? Move the side onto the bottom and install down vertically?? Installing the screws from underneath may work.



xkhan02@yahoo.com said:

Sorry for not explaining myself well. I am planning on joining two 3/4" thick boards with 1-1/4" screws. I want to round off the edge of the corner with a router roundover bit. I think maybe your suggestion to test it out would be the best. I will start with a 1/4" roundover and then try a 1/2".

this one shows the pocket hole on the outside of the joint (pointing inward)

Thats a easy one your going in to deep and your useing to big of a round over bit.This is me I use a nickle and a dime to set my colluer on my drill bit and I use a 3/8" round over bit but thats me?

I would agree with Ken, John. Other than the obvious issue of not having the pocket hole hidden, it would have the added benefit of the screw being further from the end grain.

John Schaben said:

Gotcha, Mandodad's drawing shows it pretty well. You could adjust the stop collar so the pocket isn't quite as deep, tradeoff is fewer screw threads in the piece you are attaching.  Use a shorter screw, same problem.

I would do a test piece. Attach two pieces of scrap as you are planning on your workpiece. Remove the screw and run the roundover. If you unearth the hole the screw made you know it won't make it. Evem if it does pass that test, I would be inclined to do the rounovers before assembling. Router bits are expensive.

"Inserting the screw, so the point is ''inward''---away from the end of the piece,

will allow adding a rounded corner/edge, without exposing the screw point."

I don't understand this one ken - putting the screws in from outside the box??? Move the side onto the bottom and install down vertically?? Installing the screws from underneath may work.



xkhan02@yahoo.com said:

Sorry for not explaining myself well. I am planning on joining two 3/4" thick boards with 1-1/4" screws. I want to round off the edge of the corner with a router roundover bit. I think maybe your suggestion to test it out would be the best. I will start with a 1/4" roundover and then try a 1/2".

If a radius is desired, I'd suggest using a 1/4'' radius, so as to have more material at the corner.

If one uses a 1/2'' radius, the center point of the radius, can be located closer to the outside corner---

ex: locate the center of the radius at 3/8 or even 1/4'' from the edge.

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