I purchased the top to fit into my Ridgid R4512 table saw. I have been with them for many, many years, maybe 25, purchasing thru my old employer or direct to my self. This is by far the worst thing I have ever purchased from MLCS. Long story short, the table works like a charm, but not without a few modifications and some head scratching. I'm sure there was a better way to do this, but this is what I figured out.
I did have to add some 1/4" pieces of MDF between the table and angle iron to get it where it needed to be. By using the vertical "oval" holes in the angle iron, I was able to adjust it to perfect flush with the table saw top. This was to accommodate the angle iron and bolt heads. I then removed the wood frame from the router table and sliced off 3/8 inch from either side of the router table. I removed one of the table wings and bolted some heavy duty angle iron to the insides of the rails and the inside of the cast iron top. Installation of the table itself may be a test of your problem solving abilities. It appears the aluminum one has pre-drilled starter holes for popular routers (I have a Bosch 1617), which would have sped up the process. The directions for this are available on the MLCS website, but are not included in the box. I might have upgraded to the aluminum plate. The phenolic plate seems hardy enough, and the mounting of the router wasn't too bad (a drill press will be helpful). Price is great compared to similar products. It fit perfectly between the table saw rails (but more on that in a bit). I just finished a set of raised panel doors with it and it was a much more pleasant experience than my previous benchtop router table. It had a few cosmetic bumps and dings when it arrived, but no dealbreakers. Nice product Good test of your problem solving skills (4/5), Feb 1, 2016 Includes a 2-1/4" Dust Port for standard Shop Vac hoses and a Durable plastic Safety Guard to help protect eyes.A Wood Frame (1-1/8" x 2-1/4") underneath mounts the extension table to the table saw rails.Router fence features 24" long anodized aluminum angle to keep the fence at 90° for accuracy (within.Includes Measuring Tape that reads both right to left and left to right for easy measurements. Extra Tall Split Fence allows safer vertical routing.Aluminum Miter Track in the table and T‑Track in the fence allows the use of jigs, a miter gauge, and feather boards.Hex head adjusting screws levels Magnetic Insert to top.There is also a "No Plate" option (#9776). Each plate comes with reducer rings to customize the opening of the plate to accommodate different sized router bits. Choose from two different 9‑1/32" x 12‑3/32" router insert plates: 3/8" thick Premium Aluminum or 3/8" thick Phenolic.The heavy 1-3/8" thick Table Top has a durable 27" wide x 23-1/2" melamine surface, sturdy MDF core and polyethylene edges.