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16 inch jig. Features accuracy of one or two thousandths of an inch, repeatability for duplicating cuts minutes or weeks later, micro adjustability: a simple turn of the vernier dial (calibrated in 1/1000th inch steps) fine tunes your position.

Technical Details

-Quick action cam clamp locks jig in place with a single motion
-Built-in micro adjustability moves the jig smoothly to any position
-Linear tracking system offers ultra low friction guidance
-Fully assembled
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 "Incra Jig Ultra" 2009-04-06
By Dean House
I spent several hours assembling this tool.
I have spent several hours attempting to make the double dovetail joint. The first attempts were failures. I installed more lighting to help and tried once more. Another failure. I can,t make the tails with ant accuracy. I am returning this tool and hope for a refund.
Also purchased the frued router bits and are happy with them.Incra ULTRA16SYS 16-Inch Jig Ultra Woodworking System


 "Absolute Precision" 2006-12-07
By William L. Ragland (Winchester, Ca)
I meant to give this 5 STARS, not 1.

First make sure you follow the instructions for mounting the jig to your router table to ensure proper alignment of the fence to the table and the router bit.

****I cannot stress this enough, follow the instructions EXACTLY****

I have only had this item for 3 days and at first felt intimidated by the design. However after trying to make a dovetail box I found it easy to use, just follow the directions. The box came out nearly perfect on the first try. Had I paid more attention to my alignment of the pieces the joints would have been perfect. Make sure that you understand and follow the instructions exactly. I highly recommend this to anyone who wishes to make perfect, beautiful dovetail joints. It is very accurate, fast and allows for repeatable settings without error. Make sure you have quality router bits as these joints are very, very tight. I had to use a hammer to seat the dovetails, they were so accurate.

I also used this jig on my Ryobi BT3100 table saw to replace the original fence. The accuracy of the cuts were greatly improved. Excellent product.




 "Incra jig ultra review" 2005-07-19
By James A. Tiblets (mansfield, tx)
while this jig may look a little complicated and unerving, don't be afraid of it. its really easy after you get it set up properly. its very precise so your table, router, fence, and mounting board must be as close to square as you can get. a lot of the templates deal with 1/4" material which is a little thin for me, but there are enough requiring 3/8-1/2" material to keep you occupied. have fun


 "Complete Control" 2004-09-27
By Marc Ruby™ (Warren, MI USA)
This is the lighter weight brother of Incra's flagship LS Positioner fence system. Functionally, the two are identical, with the LS based system being slightly better made and easier to use. If you are really, really serious about using a router table for dovetails, finger joints, and all the other milling operations that require high precision, you will want to own one of the Incra woodworking systems.

My personal choice was the 'Super' system, which is an Ultra system like this in combination with the Incra Wonder Fence. The advantage to that model is the sophisticated split fence, but it you aren't into turning your router table into a miniature joiner than this version will suit you fine for considerably less.

The heart of these systems are the positioners, which control the fence from a rock solid center rather than from the ends as do most fence systems. The LS position locks into 1/32" increments, which can then be adjusted by 1000th's of an inch. This is more precision than a woodworker might ever need, but it is nice to have available. Also included as the Incra stop and the right angle fixture. With all of this mounted on the 28" fence you have a milling machine capable of exotic work.

The positioners hold what Incra calls templates. These are plastic strips that come marked with all the positions to cut a particular joint pattern. Something like sophisticated story sticks. There are places to keep five of these active on the LS Positioner, four on the Ultra - this is to minimize switching. I suppose the idea seems a bit corny, but Incra has bet their reputation on these templates, and they really do work.

Two notes of warning - Incra calls this a 16" jig, but the truth is that is takes nearly 30" of machine to give you that 16" cutting width. In all likelihood you will have to build an extension to your routing table. In my case I wound up adding 12 inches of draw. And you want this to be a solid extension, since the jig and fence weigh an appreciable amount. And the learning curve for a jig with this many adjustments is pretty steep (this isn't helped by a terse manual). Expect to do a bit of experimenting before you are getting the best results possible.


 "Great fence and joinery system" 2003-10-21
By N.E. Ortyl (Boston , MA United States)
I have owned this fence / jig for about three weeks now and have used it to make several boxes and one case. It is simply great. Everything written about it is true - it is very stable and repeatable. I did purchase the new metal installation bracket that holds the system off of the back end of the router table (in order to free up additional room on the table and not give it up to the tool - download the owner's manual and look at the installation versus your router table to see what I'm talking about). In addition to reading through the manual, I also suggest that you purchase the intro video, which more simply walks you through the setup and usage of the tool. In short, well done Incra!


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