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Bench Dog 40-031 ProMax Cast Iron Router Table Extension for a Table Saw Includes Fence and Insert Plate

3.0 out of 5 stars 71 customer reviews

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  • Router table/tax saw extension; mounts to almost any right-tilt 10-inch table saw
  • Fully adjustable miter track with 3/4-inch miter gauge T-slot and accessory T-slot
  • Cast-iron construction; assembly required
  • Includes router top, fence, insert plate, and hardware
  • 1-1/2 by 27 by 16-inches; 62 pounds limited 2-year warranty
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Product Description

Thanks to the clever folks at Bench Dog Tools, woodworkers everywhere can now enjoy the speed and precision of stationary routing without having to buy or build a router table. The 40-031 ProMax Router Table Extension bolts directly to the edge of most 10-inch table saws, thus providing a flat, rock-solid platform for mounting a router.

The roomy cast-iron extension measures 16 inches wide by 27 inches long, and comes with a durable phenolic insert plate for mounting the router, and a smooth-sliding fence. The table has an adjustable miter gauge T-slot and an accessory slot that accepts featherboards and other accessories. The fence has adjustable sub-fences, a dust-collection port for attaching a vacuum hose, and two integral jointer settings (1/32 inch and 1/16 inch) for jointing board edges perfectly straight. When not in use, the fence can be removed and hung on two hooks beneath the extension table, or left in place and used when cutting on the table saw. -- Joseph Truini

What's in the Box
The 40-031 router table extension comes with a full-feature fence, pre-drilled insert plate, and all necessary mounting hardware.

From the Manufacturer

You can have all the award winning features of ProTop router tables on your table saw. With the exclusive mounting system, installation is clean and professional. Includes a phenolic ProPlate, mounting brackets, and fence. The fence comes with a dual position bit guard, quick adjust sliding subfences, front and back t-slots, built-in dust collection, and built-in jointing settings of 1/32 and 1/16 inch. The fence accepts the optional FR400/100 fence riser attachment. The dust port fits all standard 2-1/2-inch shop vac hoses. The RT250 fits most contractor and cabinet style table saws with "t-square" style fences, as well as most late model Sears and Rigid table saws equipped with front and back aluminum rails. Older saws, and saws equipped with Vega or Delta Unifences, will require additional hardware you buy on your own or that is available in the UM250 kit. Individual components are not sold separately. Made in the USA.

Product Information

Technical Details

Item Weight 60.2 pounds
Product Dimensions 32 x 21.6 x 6 inches
California residents Click here for Proposition 65 warning
Item model number 40-031
Warranty Description 2 year limited

Technical Specification

Additional Information

Customer Reviews
3.0 out of 5 stars 71 customer reviews

3.0 out of 5 stars
Best Sellers Rank #1,045,727 in Home Improvements (See top 100)
#236 in Home Improvement > Power & Hand Tools > Power Tool Parts & Accessories > Router Parts & Accessories > Tables
Shipping Weight 60.2 pounds
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available October 22, 2001

Warranty & Support

Product Warranty: For warranty information about this product, please click here


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Scott Pointon VINE VOICE on October 8, 2004
I ordered this router table extension wing to mount on my DeWalt DW746 tablesaw (on the left side). Although the Amazon site indicated shipment in 1-2 weeks, I waited nearly two months for mine to arrive. When it did arrive, everything was in perfect condition and all of the parts that were supposed to be there were included.

As I unpacked this router table wing, I was very impressed with the quality of the casting. I wish every piece of cast iron equipment I own was finished so well! The assembly/instruction manual was ok (I have had better and worse). Mounting this wing to my saw (by myself) was not a problem. Although it is HEAVY, I followed the advice of another reviewer and mounted the center bolt first and then followed with the other two. Even without shimming it, I would say that I was able to get this wing 99% even and flat to my saw table. Once the table was flat, installing the miter track and assembling the fence were a snap. All together it probably took me 1 1/2 hours to unpack and assemble (I was being very methodical).

I am very pleased with all aspects of this unit. The only manufacturing problem I found was that one of the t-knobs used to tighten the fence down to the table was a bit cross-threaded. One quick call to Bench Dog solved that - a new one was shipped to me immediately.

I have to say that I am thrilled with this purchase, both for the great design and for the excellent quality of the workmanship put into it. I will not hesitate to buy from Bench Dog in the future.
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I received the RT-250 about a week ago...This is EXACTLY 27" deep, front to back. The big advantage for me is that I did not have an extension out the side of the saw. Now I do, and it doubles as a router table. A very precise one at that... I had to use the installation kit, which is $15. ...The great thing is that I went from being able to cut only a 9" wide board on my table saw, and still use the fence, to being able to cut an 18" board, using the fence that came with the router table.
I am able to use the crosscut fence, that came with the saw, on the face of the router table also , because the slot in the router table is exactly 3/4", the same size as the one that came with the table saw.
The router table, comes with adjustable screws all along the 3/4" fence track, and they are about every 2 inches apart. You are able to adjust the play in the track, so your fence rides PRECISELY along it...The ultimate router combination with this table is the new Bosch 1617EVSPK, which is a combo pack, with a plunge base, and a fixed base, and the motor, very easily, slides out of one and into the other. Why is this so compatible? Because the plate that comes with the the RT-250 is made out of thick plexiglas. (Unless you buy the optional heavy metal one for $90) The manufacturer advises you to not leave a heavy router of more than 2 HP, installed in the plexy plate for long periods of time. If you are not using it for awhile then remove it. No problem the plexy mounting plate is held into the table with only 2 heavy screws, so for long term, you simply remove the plate. That of course leaves a big hole in the table. Something you can fall in when making table saw cuts. The solution, save the money from buying the optional metal mounting plate, and buy the Bosch 1617EVSPK.
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Verified Purchase
like most of the reviewers I have a very small shop which was one of the main attractions of this piece but after using it I wouldn't use anything else even if I had the space. Another reason was, it is probably the easiest way to install a prolift onto a unisaw, originally I was going to install it in the right extention table. first the casting is very nice, thick, heavy, and all edges are crisp but not sharp, the overall finish is impressive. the fence is also a surprise, the extrusion is thick(3/16ths) and solid, the harware is nice and it is a joy to use. The dust port works well and with the accessory slots the fence is very versitile. I can't comment about the router plate because I used the prolift. the installation was a breeze, the table was exactly the same depth as my unisaw top and fit snugly between the rails of the biesemeyer, I didn't even have to remove them. the instructions were clear and more than enough and the the installation was quick, about an hour(if you don't consider this quick you have issues), it didn't even need shiming, please look at the pictures I posted of it installed on my 1954 rockwell unisaw. Now the performance, man is this thing solid, the table weighs 55lbs the prolift with Porter-Cable 7518 router weights 34lbs together thats 89lbs, now attach that to an already 400lb unisaw and that puppy isn't going any where. vibration is like nill and it really translates into a super smooth cut and the prolift gives you so much control. The flatness of the table when used with the prolift make the cut super consistent. You can also bring the biesemeyer over and use it as a guild or a stop, its great.Read more ›
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