Prazi 18" Beam Cutter Attachment for Circular Saws – For 7-1/4"-8-1/2" WormDrive Saws – American Owned Company – Increase Cut Depth from 2-1/2” to 18”

After much research decided on the Prazi PR-7000 for my Makita 5377 MG. Was prepared for a multi-page installation thesis that would make a research engineer happy but was pleasantly surprised at the clarity and brevity of the instructions, that made me happy. With a small amount of fiddling, and a couple of texts to Bob & Michelle to confirm some language used, since I'm kinda nerdy on that stuff, everything fit as described. Bob & Michelle were very responsive. Cut and fitted some railroad ties including a 45 degree miter end cut. See pics. Worked great, cut straight and fast for the application. I think it's a great product! Thanks PRAZI.

I've been looking at these for what seems like at least 20 years. I wish I wouldn't have waited so long. It was a lot better than I expected. Very well built, to last. A lot heavier than I expected.Also a big plus, it's 'Made in USA'. I called with a question and Bob answered on the second ring. I called back with another question. I hung up after 3 rings to take another call. Bob called me back 5 minutes later. Bob is a real live human being. Cuts are square and straight. I put a rip chain on and cut some old cedar beams down into lumber. Milled them into some beautiful molding and furniture . Way easier than my table saw. I use it on a 8-1/4" worm drive Skillsaw. Very happy with my purchase.

I had intended to install this on a Rigid R32104 Worm Drive, mostly because of their lifetime warranty but it would not fit. After a conversation with Bob at Prazi I decide to mount it on a Skilsaw SPT 77. This worked out very well and installation was very easy with the exception of having to remove the lower blade guard from the saw. Adjustment of the Prazi Beam cutter was fairly easy and saw now cuts great. Very happy with the purchase and enjoyed talking with Bob at Prazi customer service.

So I didn’t give a full 5 stars for these reasons: REGARDING 12” model: on a 12x12 beam The chain & base are rather thin & in order to get precise cuts with no fraying/splintering the 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 ran into a problem while installing this on my skil worm drive. At the bottom of the instructions was a phone number and an email address which said to contact Bob. I figured what if I got to lose? I called the number and to my surprise Bob answered. He talked me through the issue that I had and sure enough it installed like a piece of cake. I recommend the Prazi saw system 100%!

With the assistance of Prazi Support to be sure the mount was proper, worked like a charm. Make sure to wear eye protection or not be too close as the cuttings pretty much kick into your face. Other than that, saved me some headaches.

Simply put, the beam cutter is awesome. Fit nicely in my Makita 5377MG, I just needed some circlip pliers to remove the blade guard. The saw was ready to rock right away, and it works as advertised! The cut depth is incredible, and it's so cool that you can use the saw shoe with the cut, and even still tilt it. Very easy to use, and crucially, it feels safe to operate. Bob at Prazi says to spray the bar with WD40 or silicon oil every 2-3 feet. A+ customer service if you need to contact them.

No me gusto la calidad, he cortado 3 vigas y ya no tiene filo

Over all very pleased with this beam cutter. It performed well and easy to use. The only complaint I have is the chain adjustment. It’s very clumsy and time consuming…….really doesn’t work well. Other than that I loved it!

Difficile à monter. L’angle de la coupe n’est jamais parfaite.

Use it every day!. Wasnt sure how handy ot would be having it around but works great for cutting posts.. stair stringers