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Leigh Super 18'' Dovetail Jig

Item #
90% of 100

Extraordinary joint making capability at an exceptional price point! Cut variably spaced Through & Half-blind dovetails easily and accurately.


The amazing joint making capability of Super Jigs is due in part to the revolutionary new Leigh E Bush (patent pending). A simple twist of the E Bush changes it's active diameter which in turn changes the fit of finger joints and half-blind dovetails.


  • Infinitely adjustable one-piece fingers are easily positioned for any joint pattern, and you are always guaranteed a half pin at each edge of the joint
  • Rout half-blind pin boards and tail boards at the same time
  • The finger assembly can also produce two sizes of box joints, 5/16" and 5/8"
  • Adjustments for fit can be made in increments of .002"
  • You can even install the included crosscut fence and the dovetail finger assembly becomes a sliding dovetail template
  • Available in three widths: 12", 18" and 24" to satisfy the needs of every woodworker and every budget
  • Easy to use cam action clamps
  • Aluminum clamp bars
  • Non-slip material on every clamping surface
  • Infinitely variable spacing
(1) 1/2" 8° dovetail bit
(1) 1/2" 14° dovetail bit
(1) 5/16" straight bit
(1) 1/2" to 8mm collet reducer
(1) Sliding dovetail fence
(1) Square drive screwdriver
(1) Cam action speed clamps
(1) Fully illustrated User Guide
(1) Instructional DVD
(1) Spacer
(1) Leigh E Bush
(1) Half-blind bridge piece material
More Information
Brand Leigh
Manufacturer Part Number SUPER 18
Weight 16.7500
Type Dovetailing
4.5 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great device, replaced an older omnijig. Took a while to setup, but it was worth it. The manual is fantastic! I have used it on a number of projects and use the manual for help. Great tool!
February 29, 2020
1 month ago
Woodworking Experience:
outstanding tool
Very well made, versatile, good instructions. Takes some set up and practice but results are excellent.
August 12, 2019
8 months ago
Woodworking Experience:
production dovetails with individual spacing
Making multiple drawers of different sizes this jig allowed easy adjustments with unique spacing of the dovetails. I have two routers dedicated to use with the jig simplifying set up.
February 28, 2017
over 4 years ago
Woodworking Experience:
It is convenient and accurate. You don't have to be a genius to make great box and dovetail (these are the only two I have made) joints. I'm able to easily do what I could only have dreamed of doing before
October 19, 2016
over 5 years ago
Woodworking Experience:
Used a couple cheaper dovetail jigs
used a coupler cheaper dovetail jigs for years and had acceptable results. Finally bought this a couple years ago and it was well worth the money. Makes about every kind of finger joint or dovetail joint you could imagine including sliding dovetails. Very accurate, easy to setup. Get the dust collection and magnetic router support that goes with it for a few extra bucks.
June 15, 2016
Woodworking Experience:
First time using a dovetail jig
I've made dovetail joints before purchasing this jig but was never completely happy with them. I always had to adjust to fit leaving different unsightly gaps. I had an important family project to make with dovetails requested so I purchased the Leigh Super 18. I received everything in the package. Carefully assembled my jig and set out to calibrate it. Made two sample joints then decided I was ready. Perfect joints the first time. Wish I'd also purchased the sliding dust collector. Maybe next project.
March 20, 2016
Woodworking Experience:
Want to pamper yourself with a...
Want to pamper yourself with a precision machine but can't afford a new Beemer? Buy a Leigh Superjig. Want to learn/improve workshop skills but can't find a mentor? Read the Superjig manual. Want to develop an addiction but don't want to go to jail? Try dovetailing.PBS would have you believe that dovetailing is an ancient and mystical art practiced by Amish craftsmen using handsaws and chisels. What a delight to discover dovetailing jigs for those of us unable to spend 30 minutes on one pin and tail. Several favorable on-line reviews of the Leigh Superjig and its manual convinced me to buy this rather expensive piece of equipment. It was worth it. The manual is an education in itself and, unlike documentation for electronic gizmos, appears to have been written by someone whose first language is English. Read it carefully and repeatedly there's a lot of valuable information in there.The jig is cleverly designed and impressively constructed. Since it is not purpose built for just one type of dovetail it does entail some patience and attention during the crucial set up and adjustment stage which will require two things: 1) some sacrificial pieces of wood the same thickness as will be used for the dovetails 2) a careful reading of the manual. The jig is most versatile with a router that can accept Lieigh's proprietary bushing. Some routers will accept the bushing, some will need an adaptor and some will just have to be replaced, unless you're willing to use a generic bushing and omit some of the more exotic dovetail options. I had to buy a new router which added to the cost (and the fun) but have yet to try any of the exotic dovetailing.Leigh sells an accessory Vacuum Router Support that provides much needed additional support for the router and a port for your shop vac to minimize the mess. It should probably be considered essential rather than optional.My first project was a pine box for the new router. It was good practice for setting up and creating through dovetails just one of the many types of dovetails the jig can make. I wasted a bit of pine learning how to set up and adjust the jig but that's what pine's for. The second project was a pine box for the Superjig itself. This time using half blind dovetails and, once again, chewing up some pine during the set-up/adjustment process.The third project was a cherry and maple cabinet for a stereo receiver. It used half blind dovetails again but the jig had to be re set and adjusted due to using thinner wood than the previous half blind dovetails. In preparation for this I had planed some sacrificial set-up pine the same thickness as the cherry and maple. So far the process and results of creating through and half blind dovetails has been quite rewarding and well worth the time and money invested.
September 21, 2009
I am very happy with my...
I am very happy with my Leigh dovetail jig. I set the jig up in about 45 min. The instructions were very easy to understand and I was cutting dovetails in no time. I would highly recommend this jig.
February 8, 2008
Extremely difficult to make tight adjustments. Over all, nice jig.
February 28, 2017
over 3 years ago
Woodworking Experience:
Not sure yet.
Jig Looks AMAZING! Instructions are easy to follow. The collar for Dovetail's doesn't fit my router so needed to order that. The Leigh website was really easy to use and to make sure I got the correct components. Will update when I am actually able to use it.
January 20, 2020
3 months ago
Woodworking Experience:
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Browse 3 questions Browse 3 questions and 3 answers
Why did you choose this?
Rockler Store
Excellent product and saved on shipping
Susan Mallory A on Nov 30, 2019
I have several projects that have multiple drawers. Looking for accurate and attractive dovetails.
Thomas J on Oct 18, 2019
Excellent product and saved on shipping
Susan Mallory A on Nov 30, 2019
Quality and price
Richard F on Oct 20, 2019
I have several projects that have multiple drawers. Looking for accurate and attractive dovetails.
Thomas J on Oct 18, 2019
great reputation. if your going to do wood working then you should have the best tools, especially if you doing your work for others.
Eric W on Mar 12, 2019
wanted a better jig with which to make dovetails
Bob B on Mar 24, 2018
For the few dollars above the Super 12 price I have the option of working with wider materials. Leigh jigs all receive excellent reviews.
Thomas T on Oct 7, 2017
to further my cabinet offerings to customers and make a more streamline work environment.
Jason J on Jan 24, 2017
I used it on a large project
Rick P on Jun 3, 2016
Working on a larger chest and the Rockler jig was not suitable.
CAROL S on Aug 20, 2015
Quality and price
Richard F on Oct 20, 2019
great reputation. if your going to do wood working then you should have the best tools, especially if you doing your work for others.
Eric W on Mar 12, 2019
Does the Super 18" work with a Porter Cable 890 Series router?
TOM F on Oct 19, 2016
Is it possible to use a 12" Super Dovetail jig for larger projects by jointing two twelve inch boards and it done accurately make it look like it was done on a 24 inch jig?
werner p on Nov 11, 2016
BEST ANSWER: Hi, I wanted to make toy boxes that were 18 inches high using the leigh jig to make finger joints. I was able to mill two boards and then join them. I made one board wider than I needed, did the milling making sure that I was essentially making two separate boxes. That is, I milled all 4 sides of one set and then all 4 sides of the other set. Since the joint was at the same place on all 4 sides, slight differences would not be noticeable. I made two of the boxes with hinged tops at the height of a dining chair. At family gatherings the grandkids love sitting on the boxes when we have too few chairs for all.
Does it have different size fingers for smaller dovetail joints?
Lee B on Aug 21, 2018
BEST ANSWER: No, only one size and set of fingers.
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