Prazi 12" Beam Cutter Attachment for Non-Worm Circular Saws – Model PR2700 for 7-1/4" Circular Saws, Non-Worm Drive – American Owned Company – Increase Cut Depth from 2-1/2” to 12”

This beam cutter is awesome and works great! I checked some cuts against my miter saw to make sure they were straight and they were right on!

We rely on our three Prazi beam saws for just about everything—cutting joists, timber beams, and any other work that comes our way. These saws are incredibly versatile, and what makes them stand out is how easily they bolt onto our worm drive saws, saving us the need to carry a big, dedicated beam saw in each trailer. The best part is, the Prazi takes up minimal space, which is a huge advantage on busy job sites and tight trailer storage.While we do own larger, dedicated saws, they weigh nearly twice as much as the Prazi. That added weight makes them cumbersome and difficult to maneuver, especially when cutting posts or beams that are already installed. The Prazi is not only lightweight, but it’s also much easier to handle, giving us the precision and control we need without the strain. For everyday use, it’s simply the better option for us—powerful, practical, and far more convenient than the bulkier alternatives. If you’re looking to streamline your setup without sacrificing performance, the Prazi is a must-have.

I bought a Prazi Beamcutter to trim and notch the tops of 8x8 installed posts that were required for a foundation on a room addition that I'm building. I just needed a saw the would cut the posts square. Also, I knew that I couldn't make a square cut on these posts with a chain saw or with a Sawzall and a long blade. Moreover, I needed something that would work but didn't cost a fortune. With that, I bought a Prazi PR-7000 for my Skillsaw Mag-77HD. It's not perfect, but it does the trick. Mounted on the Skillsaw, the Beamcutter feels a bit awkward, especially when used at a 90-degree angle. Don't think that you can just walk up to a verticle 8x8 post, mark a line, and expect to cut it off square just buy holding the saw steady. You will need to use some sort of fence to rest and guide the saw on in order to get the square cut. I use one of those nifty aluminum clamp-on fences which works very well.My only real complaint is, like Evan Neale put it in his review, "the bar bounces around a lot when you begin to cut into a beam so you get sloppy cuts starting out". The bar actually vibrates quickly from side to side thus making the start of the cut a little wide, but he vibration quickly goes away once the bar and chain enters the kerf. Overall, the cuts are fairly clean and very satisfactory for my job.I find the Prazi Beamcutter to be a good value.

So I didn’t give a full 5 stars for these reasons:REGARDING 12” model: on a 12x12 beamThe chain & base are rather thin & in order to get precise cuts with no fraying/splinteringthe chain needs sharpening quite often. A simple chainsaw sharpener will work great (kits come with 3 files & a base to hold chain in place. Takes some time, but you can get it much sharper than how it comes from seller)Install was a little finicky on one of my Skilsaws, didn’t work on my Makita, but finally worked on my 2nd Skilsaw.Overall it’s a pretty decent tool, it’s much cheaper than buying/renting a beam cutting saw (16” Makita) and saves me the trouble of doing cuts on various faces of a large piece of wood.That being said, I’m using this Prazi blade as a means of cutting 1” thick pieces of end grain off of a 12x12 beam. It’s doing the job but it requires a lot of maintenance to rip through a heavy piece of lumber like this.If you’re a hobbyist or doing 1 or 2 jobs this is a great and relatively inexpensive tool to have (beam saws go up to the $700-800 range for large quality tools and generally cut up to 6 3/4 inches).I still have about 44” of wood to cut with this little Prazi attachment, I hope it can do the job.ONE THING TO NOTE!!!Being that my project is a heavy piece of lumber, I may be pushing this Prazi blade too much. One of the photos I attached shows one of the bolts that holds the chain base to the worm drive fitting (which in turn attaches to your circular saw). It broke on Friday afternoon & I was forced to replace it with a machine screw from the local steel shop. Ive also attached a photo showing that the threads are starting to strip on the attachment itself.All in all, pretty good product, just be aware that not every circular saw is the same so do your research before you order. Also, if you are trying to cut thicker pieces than 12” I would suggest going with the 18” model made by Prazi.If Prazi products don’t work for you, there’s a lot of information out there on rigging a chainsaw to a jig made of 2x4s to get precise and level(ish) cuts.Work safely

I purchased the Prazi 7000 to go on a Skil 81/4" saw. It took me about 30 min to set the Prazi on the Skilsaw, being you have to take the blade guard off of the Skill worm drive saw. I have a large timber beam project I took on at my home and have to make approximately 200 crosscuts, miter cuts and lap joints on 6 X 10, 6 X 8, 6 x6 and 4x6 cypress beams. I had a few questions when thinking about purchasing this tool rather than using my 16" beam saw. I called Bob on 3 separate occasions, and he was quick to answer the phone and give me the guidance on what I needed and any assembly questions.After assembly and alignment of the saw I crosscut a 6"x10" beam and it was like butter to cut, and the face was flat and straight even with no guide! I have to make over 25 lap joints on my 4" x 6" purlins. I made another lap joint test cut on a 4 x 6, again by free hand and it wasn't perfect but with a guide it would have been, and it only took less than a minute. If the rest of my project goes as good as the test cuts, this tool will save me hours upon hours of time.I'm giving this tool 5 stars because of price point, ease of assembly and use and something else that is hard to find these days is great customer service. Thanks Bob!!1