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Leigh FMT Pro Frame Mortise and Tenon Jig Zoom

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Leigh FMT Pro Review
Leigh FMT Pro Frame Mortise and Tenon Jig Overview

Leigh FMT Pro Frame Mortise and Tenon Jig

Item #: 25004
Cut indestructible mortise and tenon joints with absolute precision. Can create tiny tenons less than 1/4" wide—you have to see it to believe it.
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$1,079.00
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Overview

If you can use a plunge router, you can cut strong, perfectly fitting mortise and tenon joints in no time. Easily rout single, double, twin, quadruple or even triple mortise and tenon joints, plus angled and compound-angled joints, in stock up to 3" x 5". Virtually any plunge router will fit and still be available in seconds for other uses.

Nothing provides matching joint halves with the ease and accuracy of the new Leigh FMT! Named one of Workbench Magazine's Top 10 Innovative Tools of 2004, the FMT Jig allows you to rout both parts of the joint with just one joint guide, one router bit and one jig setup. Make perfect joints for everything from match-stick frames and miniature tables (rout joints smaller than 1/4" - so tiny they're almost beyond belief!) to full-size chairs and 6-foot garden gates.

Features:
  • It's remarkably easy to set up perfectly aligned multiple mortises and tenons on the FMT. Precision and repeatability are made possible by adjustable table limit stops that control the table's range of motion in both X and Y axes.
  • With each mortise or tenon position sighted and limit stops set, you're ready to rout double, quadruple, or even triple joints with the same ease and precision as a single mortise and tenon.
  • Joint tightness is infinitely adjustable by simply turning a calibrated knob; the fit is recordable and repeatable.
  • Sliding cursor provides easy alignment.
  • Bolts to a board and clamps to a bench.
  • No dedicated router is required!
  • Comes with universal sub-base that attaches to virtually all plunge routers, five 5/16" guides that will make over 20 sizes of mortise and tenon, guide stand, 5/16" spiral upcut cutter with 1/2" shank, two cam-action Speed-Clamps, outrigger bars, adjustable sidestop fence, fully illustrated user guide, screwdrivers, and mounting hardware.
  • The ACMTC Accessory Kit (#39770 - Sold Separately) includes eight 1/4" guides, four 3/8" guides, four 1/2" guides, eight-piece solid carbide spiral upcut bit set, and wood storage box.

What's included

(1) Leigh FMT Pro Frame Mortise and Tenon Jig

Technical Details

  • Brand: Leigh
  • Manufacturer Part Number: FMT PRO
  • Weight (lbs): 29.2200
  • Type: Mortise & Tenon

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Questions and Answers

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Browse 6 questions Browse 6 questions and 15 answers
Why did you choose this?
Rockler Store
quality item will enhance
the quality of my work
steven c on Jul 12, 2016
Leigh tools are incomparable !! The Best
Have no more superlatives...
Jacques S on Aug 4, 2015
quality item will enhance
the quality of my work
steven c on Jul 12, 2016
For large timber joinery.
R-LT COL THOMAS L on Jan 1, 2016
Leigh tools are incomparable !! The Best
Have no more superlatives...
Jacques S on Aug 4, 2015
For large timber joinery.
R-LT COL THOMAS L on Jan 1, 2016
Does anyone have any experience using this jig to cut mortises in curved pieces? If so, was it difficult to set up this jig do so?
A M on Apr 25, 2015
BEST ANSWER: I'm sorry. I haven't advanced enough to even try that. I would imagine that a jig could be fashioned that the curved piece would fit into. Something that would hold the curved piece in an exact part. The jig could be square where it meets the fmt, but accommodating your curved pieces. If you figure it out, teach us!
will this jig work with festool routers?
David M on Feb 9, 2016
BEST ANSWER: Have the large Festool plunge router on mine. Fits perfectly.
Will it work on large lumber like a 2×4 mortise in wide side?
Glenn B on Mar 16, 2016
Is the length of your workpiece limited by the height of your workbench?
David G on Aug 30, 2016
BEST ANSWER: The FMT pro is a fantastic jig. Highly accurate and pretty easy to use once you get the hang of it. But, yes, workbench height from the floor limits the length of your workpiece. For example, when joining a table apron to a table leg you won't have an issue with the mortise in the leg, since it oriented horizontally, but if the apron is longer than the workbench is high you won't be able to make the tenon. You can gain a few inches by securing the jig to a few pieces of wood on top of your workbench, obviously, but if you are working with an apron from a 6 foot long dining table it's going to be a problem. I would certainly buy this jig again, but now I also own a festool domino and a hybrid pantorouter - both of which can be used with workpieces in the horizontal orientation.
Is this a usable set for the Leigh FMT Pro or do i need to go spiral?
Bjorn113 on Feb 22, 2016
Leigh FMT Pro Frame Mortise and Tenon Jig
Leigh FMT Pro Frame Mortise and Tenon Jig
Rockler 4-Pc. Straight Bit Set - 1/2
Rockler 4-Pc. Straight Bit Set - 1/2" Shank
BEST ANSWER: Leigh recommends up-spiral bits for this jig. The jig itself and the whole system of guides is designed to be used with up-spiral bits. I have several sizes and they work great. The mortises are made with the opening facing up, so you really need the dust and wood shavings to go up & out. With a straight bit I would anticipate a lot of smoke, burning, and possibly a stalled-out router.

Reviews

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4.4 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
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Although this unit is rather costly...
Although this unit is rather costly it does exactly what it says it will do. My first project was building 11 different sized cabinet doors with mortise and tenon joints at each of the corners. In less than 3 hours I was done with all the joints and they fit perfectly. This time included assembling the jig, reading the instructions and several practice runs. Now that I'm set up it takes longer to set the router depth than it does to set the jig. Do recommend a very solid plunge router with a base that has little play during the plunge motion. By the way that will not be a Porter Cable. Mine and several other reviewers got poor results with the Porter Cable. I used a Freud and others have highly recommended the Bosch.
November 13, 2007
Very nice product. Setup is tedious...
Very nice product. Setup is tedious but not hard the first time. Once you have your router "mated" with the jig this is a lot of fun. This thing takes the inexperience out of the equation. As long as you follow directions you will make some very nice joints. I would make a reference block and as you get guides make a mortise and tenon and mark it with guide size and bit size. This makes it a lot easier if you are building a project that requires several different sizes.
April 1, 2012
Oh yea, now this is one...
Oh yea, now this is one fine piece of equipment. Sure it cost a lot, but if you are serious about making fine furniture, then the FMT is a must in your shop. I just completed my first piece with the FMT it has show through tenons. With my normal way of making this joint, it would take me a half day and then more than likely it would look terrible. But with the FMT, it took me only 15 minutes and i held tolerances to a few thousands. So don't think twice about getting a FMT. Just do it , you will be very pleased.
December 5, 2007
Having read some of the comments...
Having read some of the comments here I cannot believe they are talking about the same machine! This is a superb machine and worth every single penny; like any machine it has limitations, but as a general shop tool it is perfect, beautifully built and engineered from top quality materials, is incredibly simple to use, versatile, finely adjustable and super accurate. Highly recommended like all leigh tools!
January 1, 2010
Happy with the product, arrived in...
Happy with the product, arrived in two days, spend the extra do it right!
October 1, 2011
I think this is one of...
I think this is one of the best-designed woodworking tools I've ever used. When you try to make stupid mistakes it stops you. All the little things are done well and construction is excellent. I just did 16 tenons in about an hour and the last one was just as good as the first one. Placed right, sized right. What you want from a tool - consistent results with less effort. Not to mention great service from the Leigh.I'd like better dust collection - the port hole is too big for end mortises so I have to place a block in the dust collector when mortising. Otherwise it's a 10.
July 12, 2010
Was hesitant about the price,however as a woodworker the pro gives me many choices and advanages,easy to use and out of the box I could make a perfect mortise and tenon.
April 7, 2016
Purchased
 6 months ago
Leigh FMT Pro Frame Mortise and Tenon Jig
Utterly well built and precise.
September 17, 2016
Purchased
 8 months ago
Woodworking Experience:
Advanced
The product is sturdy enough and...
The product is sturdy enough and after working with it a bit it is easy to achieve repeatable results. My problems have been with the clamping system and the alignment system (i.e. the alignment bar that can be attached for vertical milling. The clamps are a little difficult to use when you are holding the piece in position and trying to clamp it with the other and tightening it with the other.The router mount is difficult to slide,but as I said once you have the system set up for the process it is easy to repeat with great accuracy. My other issue has been that I am assembling 46 window frames for an old railroad car. The frames require at least three different mortises for each frame. I like to build a little make a little but without a way of easily "marking" or "remembering" where your set up is you have to do all of one kind at once or go back through the set up again. With the advances in micro electronics and the cost of the jig it would seem that adding some sort of memory feature that would facilitate returning to a previous set up would not be an impossible engineering feat within the current price structure. Also it is difficult to see for alignment purposes. I was working with pieces of window frame and trying to align the router over the location of the mortise was a challenge because it was difficult to see to align the bit. Once it was set up it was much easier and things went quickly. It is pricy though and it would seem that the engineering costs should have been recovered.
November 24, 2008
What a disappointment! The construction is...
What a disappointment! The construction is of remarkably poor quality; moving parts are shoddy plastic. I am quite afraid the FMT won't stand up to years of heavy production use and I am all too eager to send it back for a refund. For such an exorbitant price, I expected much finer workmanship. Besides the serious quality-to-price issues, the FMT's real major flaw is how incredibly overengineered it is. This thing can rout 1/16" tenons in matchsticks. But who is ever going to need to do this? Larger stock is all but impossible to secure in the jig and tenons must be done as multiples (2...or even 4). With all of this "flexibility", this jig really not much more than a big compromise.In its defense, the FMT does just what it says it does. But I just think there are so many better (cheaper too) ways to do it. If you're already making mortise and tenons on your own, this thing will just be a setback. People who like silly shop toys will like the FMT; woodworkers who expect quality will feel sorely ripped off.
January 27, 2008

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What People are Saying:

I have been using Rockler for years, your products are always the best that can be purchased and your prices are very reasonable. Ann you have always done your best to make me feel as though I was your very best customer. Thank you for great service."

- Daniel F.
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