Diment Power Surface Grinding Dust Shroud for Angle Grinder 115mm / 125mm （4 inch / 5 inch）

I was real hesitant would work but boy it does the job. grinding out a ten foot hump in basement floor worked in minutes no dust. no need to rent when can own so cheap

This fit both a B&D and a DeWalt grinder I have. Used it many hours and it held up to use and literally captured 98%+ of cement / paint dust. Vacuum hose adapter 1.25" to 2.25" can be found in most hardware stores. Very pleased. Used it with ALOK diamond 4.5" cement grinding wheel. Every 20-30min clean your vacuum filter and you will see very little dust. Highly recommend and would buy again.

I could almost rate 5 stars except for: The vac hose attachment needs to be taped on to keep it from falling off. It almost fits snuggly enough but not quite. The attachment does not quite fit on my Dewalt grinder. There are a couple of nubs on the grinder housing behind the spindle that get in the way of the clamping ring from seating all the way onto the grinder housing. Because of that you can't get the collector on all the way and squared up. It works but not quite right. I have another grinder, Ryobi, that the device fits on perfectly so I went with that one. I forget the exact model Dewalt but I saw a comment here that the collector is a good fit. It fits but not great. Overall, this thing does the job. I removed old ceramic tiles and there was thinset stuck all over than this got it off with the right wheel with essentially no dust. Kind of amazing.Update: I used the tool for 3-4 hours yesterday on my kitchen remodel. Seems like the edge door has started to not stay closed. Not a big deal, but maybe a small latch would be a good idea. Without the door closed, if not next to a wall, stuff gets blown all over.One more issue: not really related to the performance of the collector, but my shop vac, 8 gal model, gets its bag filled quickly. The collector sucks up just about everything so even very fine dust gets collected. With the 75 sqft or so of floor, I had to change the bag in my ShopVac twice. Just something to keep an eye on.

I waffled between 4 and 5 stars for this, because it does have some shortcomings in how it attaches - the instructions don't help much and the hose clamp popped back a notch before tightening enough to stop all movement. However, for the price, it's impeccable and I'm honestly amazed how well it works. Somewhat my own fault, I just read the headline that included "Universal" and thought my Porter Cable corded grinder would work. It didn't, but my cordless Craftsman V20 did and I decided to give my project a shot before dropping money on another grinder. I only had to grind a less than 4x4' area of slab for a shower tray, and happily the cordless one kept up fine, though I did have to recharge the battery once. I used a shop vac running behind a cyclone separator, and the dust collection was nearly perfect, verified by my particle counter (want to be sure the air is clear lest my wife walks in and breathe a lungful of silica dust). You should still wear a respirator if you're inside, but you might not even need one outside. FYI, I have a mid-size 1.5" shop vac hose in my arsenal with a rubber end that fit nice and tight with a little persuading, so I luckily didn't have to mess with any adapters.Now we get to my review's headline. If you need to get right up to an edge, get a 5 inch wheel because the sliding window will leave a gap with just a 4 inch wheel, which I had gotten to be sure I didn't overwhelm my (corded when I originally planned this) grinder. When I was almost done, I figured I should make sure even the edges (think about 3/4 inch or so) were bond prepped, so I took the hood off - and replaced the conventional guard! - and went at it. An hour later that dust, which within seconds made the air visibly cloudy, is still being slowly pulled out of my bathroom by the fan. So, yeah. If edges matter get a 5 inch wheel for finishing work at least. I'd still probably use just a 4 inch wheel for normal work unless you have a big 11-amp corded grinder.

It works right off the bat; however, it didn't fit my Makita 4.5 inch Grinder perfectly. At the time, my model was listed on the description page, but now it seems they changed the description. It makes sense; I used the clamping washer/ring, but can only get it seated about 3/32th of an inch to 1/8th of an inch. With that said, after tighten the worm/hose clamp and trying to get it leveled with grinding wheel, and adjusting some more, add a few tape here and there, it worked perfectly. I would say my favorite factor is the amount of dust it removes from the air. With the proper vacuum attachment, I can trust that the amount of dust removed is going into my shop vac. In terms of dust collecting I would give a 5 Star rating.Now why I gave it three stars. It worked absolutely great the first time, but when I had to install it the second time, the clamp broke and the springs(used to push the brush down) in the dust shroud were stuck. I had to spend a good amount of time, cleaning, lubing, and removing the brushes from the Dust shroud and resetting the springs in it. They do provide you with two extra clamps, but seeing that my Makita grinder doesn't fit as snug in first place cause the second clamp to break. There is a potential chance I had over tighten the clamp , but getting it seated, without it moving, with only ~3/32" - 1/8" mating space is rather tough. This time I had to just leave the dust shroud attach to the grinder in the remainder of my renovation. If The description at the time did not list my grinder model, then this review would be different because I felt I had to use tape and spend more time getting it to sit better.So far I used it for about 2500 sqft over the course of a month now and it is holding up. Sometimes the flush grinding door will randomly open while grinding and that can be annoying. Will update once I finish another 1500 sqft of grinding.