This is an excellent miter gauge, and an excellent value. A perfect replacement for the mostly useless miter gauge that came with an otherwise excellent table saw. And the cost is almost too good to be true - when you look it over and see how well it is made, you'll likely be astonished that it doesn't cost more than double what it actually costs (for as long as it remains on sale). The only gripe I had is that you are on your own to figure out how to put it together, however it is trivial with just one minor exception. There are three main parts: the protractor base, the minimal fence or whatever you call the piece that you rest the workpiece against, and the larger fence which has markings for length. The larger fence is made from extruded aluminum, which is the near-ubiquitous way to make a part that needs to have a precisely made channel-slot. The smaller fence attaches to the protractor using the three screws that are obviously for that purpose. The smaller fence has a couple of screws that extend into the channel-slot in the larger fence. At the opposite end of those screws (opposite from the head of the screw), each screw is threaded into a small block of aluminum. This small block of aluminum is the part that grabs onto the larger fence so that they can be clamped together. What you have to do is first remove the plastic cap from one end of the larger fence (the one made of extruded aluminum), then when holding both of the fences in the approximate proper relationship to each other, and at the same time positioning the two screws so that the small aluminum blocks are in the best position to permit you to slide the two of them into the channel at the end, you do that. BUT, those little blocks of aluminum can go onto the screws either of two ways, only one of which is correct. You have a 50/50 chance of getting it right by guessing, and if you get it wrong, it isn't a big deal to do it over when you discover that the two rails will not clamp together tightly.