Prazi 18" Beam Cutter Chain - Replacement Chain for Prazi 18" Chain Attachment, Circular Saw Accessories, Sharp & Versatile, USA-Based Small Business

Okay first of all I want to point out that this isn't going to be directly compatible at first with the Milwaukee M18 Fuel Rear Handle circular saw, you will need to remove the blade guard (c-clip), but after that is where you need to go shopping. This fits perfectly in the arbor BUT the provided bolt they give you for this is not the same that the Milwaukee M18 circular saw used. What is needed here is a 5/16-18 lefthand threaded bolt, 1.5" long. Fastenal and Amazon have thus but you are looking at spending $30 to obtain this bolt (unless you order other fastenal stuff then it is much cheaper that route at $2.50/bolt but don't think those are even at 1.5" lengths). Once you purchase the bolt and install you will need to obtain yet another bolt to get this to secure in the plate height groove (1/4-20 carriage bolt with washer and nut or wingnut) as the provided bolts are too thick for the Milwaukee saw.I just got this all set up and tried cutting through a 8" x 8" block. I didn't even use a HD battery just a standard 5.0 and it worked flawlessly.Hope this helps for anyone wanting to convert their Milwaukee M18 Fuel Rear handle saw to accept this.

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 installed the Prazi on my Skil "77M" and used it to cut 11 7/8" engineered floor joists to length and square. It worked beautifully! No other "beam cutter" saw could cut that wide of joist in a single pass without cutting from the side of the joist. It also allows me to stack about 5 to 6 2x rafters up and cut the bird's mouth cuts all at once. I did find that the saw causes tear-out at the top of the cut, so it is a good idea to use a utility knife to scribe a line just outside the limits of the cut to prevent that.The chain is essentially a chain saw so the cut is not as smooth as I might like, but, this is a unit for framing not finish carpentry.Once you have installed the unit on your saw, you are able to remove it and re-install it as necessary pretty quickly. However, it does take some time and you should "group" your cuts to reduce the number of "changeovers" you need to make.I found some chain saw bar oil, worked into the chain frequently seemed to help the system run smoother than just lubricating the tip, as recommended in the manual.All-in-all an innovative and well-made product.

This does not fit my Skil or Ridgid saws despite claiming it does fit those brands. The opening on the saw is not large enough and the supplied hex bolt fits neither saw.

The media could not be loaded. Funciona y se adapta a cualquier Sierra Por es sistema que tiene, muy recomendable

Chain does not fit PR 7000. Just a regular chain for a 12'' chainsaw.

Werkt prima en een erg mooie oplossing om haaks dik te kunnen zagen

good

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