Keller Jig Modification

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Project by molarman posted 12-17-2007 05:35 AM 14494 views 40 times favorited 9 comments Add to Favorites Watch

A while back I saw a post on a ww forum (don’t remember which one) where a stop was made for the Keller dovetail jig. The recommended procedure for the Keller is to cut the tail boards first and then scribe a line on the pin boards corresponding to the position of one of the tails. The pin board is then placed on to the jig and once properly lined up, is offset from the position of the original tail board. It would have been nice if this offset did not exist, thus allowing the user to place the boards in the same position on each side of the jig. In any event, the post I saw a while back not only acted as a stop for both tail and pin boards but also had the offset built into it.
I decided that this would be quite handy to have so I created my own.

-- Woodworking is not a's a joinery !!!

9 comments so far

View Todd A. Clippinger's profile

Todd A. Clippinger

8901 posts in 5437 days

#1 posted 12-17-2007 07:14 AM

That is a pretty nice looking jig. It appears to be very accurate from the looks of your demo piece.

-- Todd A. Clippinger, Montana,

View cajunpen's profile


14578 posts in 5404 days

#2 posted 12-17-2007 08:36 AM

Thanks – I have the Keller Dovetail jig and have been thinking about how to go about making just such a jig – Thanks for posting it.

-- Bill - "Suit yourself and let the rest be pleased."

View Blake's profile


3443 posts in 5212 days

#3 posted 12-17-2007 10:47 AM

Hey, thats awsome. What an easy way to make machined dovetails. Beautifully made too.

-- Happy woodworking!

View mot's profile


4928 posts in 5374 days

#4 posted 12-17-2007 04:22 PM

That’s a good way of handling the offset needed for that jig. Good one.

-- You can discover more about a person in an hour of play than in a year of conversation. (Plato)

View Matt (Upper Cut)'s profile

Matt (Upper Cut)

264 posts in 5151 days

#5 posted 12-21-2007 06:01 AM

Molarman, the offset is fixed for the thickness of the piece your are milling, right? So if you wanted to use a different thickness, you’d need to change the jig?

-- Matt Gradwohl, Upper Cut Woodworks,

View molarman's profile


46 posts in 5156 days

#6 posted 12-21-2007 04:16 PM

“Molarman, the offset is fixed for the thickness of the piece your are milling, right? So if you wanted to use a different thickness, you’d need to change the jig?”

Nope, the instructions for the Keller jig state to cut (I think) the pin board first, and then to take that board to the tail board and scribe the outline of one or two pins. The tail board is then placed on the other side of the jig and the newly scribed lines are lined up with the jig. The tail board is then cut. When the tail board has been properly placed back on the jig, there will be a consistent, repeatable offset from the location of the pin board.

This is done irrespective of board thickness.

All my jig does is compensate for this offset and properly align the tail board without the need for scribing any lines, thus making the process faster and removing some of the “hassle factor”.

Make sense?

-- Woodworking is not a's a joinery !!!

View Dusty56's profile


11868 posts in 5026 days

#7 posted 08-09-2008 05:09 PM

this just came around on the roll the dice game ….Beautiful set up you have made here. I take it that you use your Keller jig on a router table instead of clamping the stock in a vise and attaching the jig to the stock.
I should blow the dust off of mine and put it to work in this manner : )
Thanks for the great idea and have a wonderful weekend !

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

View bibb's profile


332 posts in 4869 days

#8 posted 12-03-2009 05:21 PM

Hey Molarman,
Nice jig, What is the amount of offset? 9/16? or something else?
Thanks Bibb

-- you may only live once, but if you do it right that's all you need

View molarman's profile


46 posts in 5156 days

#9 posted 12-03-2009 05:25 PM

bibb – As memory serves, it is exactly 9/16”.

-- Woodworking is not a's a joinery !!!

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