HERZO Dust Shroud for Angle Grinder 4/4.5/5 inch Universal Surface Grinding Shroud (125MM)

Mine is the black 4.3 amp Drillmaster 4-1/2" angle grinder and I had no trouble attaching this dust shroud. I was actually very impressed with the solid build of this thing despite the low price, and AMAZED by how well it worked. Practically eliminates dust completely. I purchased a different (and much more expensive) shroud previously and returned it immediately because I wasn't able to fasten it solidly to my grinder. No such trouble with this one. A few important observations I made: - "Universal" doesn't mean "no adjustment required." You might have to tinker with it to get everything right, so be patient. These are dangerous, high-speed tools. Take your time. - Don't try to just use the clamp arm to get a tight fit. That will get it snug, but then you have to tighten it fully with a metric socket. Once I did that, the shroud never wobbled once. - Setting the shroud so the bristles just barely extend past the surface of your grinding cup is critical. If your cup extends past the bristles, it will allow the dust to escape. There is some minor up/down adjustment possible with the shroud itself on the grinder's collar, but not much, so the height of the cup you have is important. I see some reviewers using nice DeWalt cups that seemed to be the right height. Me? I had the cheapo HFT Warrior brand and at first it was too tall even with the arbor ring removed (the cup extended beyond the shroud's bristles.) So, what I did was cut about a quarter inch or so off the cup's spindle using the angle grinder and a cutoff wheel (also HFT.) There is some stock beyond the threads, so I cut that part off and was still able to fully thread the cup onto the grinder arbor after the modification. After that, I was able to set the shroud to the correct depth and was off to the races. - Opening the hinged red cover on the front will allow you to get closer to a wall (if you're grinding a floor) but not completely flush. It'll get you maybe a half inch away. I found that having that cover open still didn't allow much dust to escape - definitely some, but nowhere near as much as if the shroud was off. - Go slow, make sure you're keeping the cup flat against your surface, and apply slight pressure to keep the shroud's bristles sealed against the surface. If you're doing this indoors, still staple up plastic sheeting and wear a dust mask, because it isn't 100% dustless, but the difference is night and day. Best tool purchase I've made in a long time!

I used this with the $20 Harbor Freight 4.5", 5 amp angle grinder and a fairly new Rigid shop vac to grind old floor adhesive off a concrete slab in preparation for tiling. I cannot imagine doing this job manually, or using a grinder without a device like this. The good: Once set up correctly it works as advertised, tremendously reducing the amount of dust that escapes into the room. It's a fraction of the price of some of the name brand options. The bad: Many other reviewers have commented that the hose attachment doesn't fit a typical shop vac hose. It's true and absurd. I happened to have a drywall sander shop vac attachment that had a smaller hose that I was able to use as an intermediate attachment, but even that required duct tape at the connection point to hold it all together. The clamp for securing this to the grinder is a bit chintzy as well. Several inserts are provided to get the diameter correct, once I found the right one it fit OK but isn't exactly a secure fit. You need to use a little wrench to get it close then the cam lever to lock it. It can easily be moved if you put some force on it. I do recommend this, just be prepared to MacGuyver the shop vac connection and be patient getting it clamped onto the grinder.

I used this dust shroud on a Ryobi angle grinder. It was easy to remove the standard shroud and install the dust shroud. Adapters of several sizes made a custom fit in a couple minutes. It's important to adjust the height of the shroud so the bristle ends are planer with the surface of the bit. The shroud is rated for bits of 4- to 5-inches diameter. I used a 4.5 inch diamond cup bit. No problems. The shroud has a section at the front that can be rotated to the left, allowing the bit to work up close to edges. With the gate open there was some dust and particle spatter. With the gate closed there was no discernible dust. I used a Festool MIDI dust extractor on maximum suction. The gate stayed closed when it should. It opened a little stiffly, which probably helped it stay closed the rest of the time. When working against an obstruction, movement of the tool from let to right may nudge the gate open. Keep an eye on that, or work from right to left. The tool included an adapter to help with the usual nightmare of getting hoses and tools to fit together. With my Festool hose the adapter was not helpful. I solved the problem by using a piece of clear tubing from a big box store. The inner diameter of the tubing was 1-1/4 inches (32 mm). The end of the Festool hose is a little larger, 35 mm. To achieve a snug fit I soaked the bottom three inches of the clear tube in boiling hot water for a couple minutes, then stretched it over the top of an empty wine bottle where the neck curved smoothly outward. After cooling slightly the tubing maintained shape and fit snugly on the Festool hose. The unstretched end fit snugly on the outside of the shroud's dust port. In operation they did not pop apart, not even once. They also detached with just a bit of effort. I only needed six inches of the clear tubing so there's plenty left to try this trick on another tool. I thought about subtracting one star for the annoyance of getting the shroud to fit my dust extraction tools but in the end it worked so well that I have to give it five full stars. Frankly I was astonished, and quite pleased, at how well the shroud contained virtually all the dust created by the diamond bit. My impression was that 99% of dust and larger particles were contained by the shroud and sucked into the vacuum.

The product solidly deserves 3 stars. The performance downsides were too much for me to keep it though. First, the good: - it clamped securely to my old Milwaukee 6095 without any adapter - it seems well constructed and durable enough, especially for the price. I didn't use it long enough to test long term durability. - I liked that you could slide the guard out of the way to grind close up against the wall. Now the bad: - The whole thing is too short in height. My 7" grinding cups are tall enough so that when you put the grinding head on the floor the shroud's bristles don't come close to the floor, meaning they won't catch anything during grinding. I loosened the clamp and was able to pinch it up farther on the grinder neck which helped some, but I could never get the bristles to reach the floor when the grinding cup was touching the floor. This means it would catch SOME dust but a lot of it flew away right under the bristles. It's better than nothing but could be much better. - The port to attach the vacuum hose seems like a weird size. Maybe it's just my vacuum (1.25" hose) but the end of my vacuum hose was the exact same inner and outer diameter as the port on the shroud. So the only way I could connect them was to use the supplied adapter to VERY LOOSELY connect the two hoses, then I taped everything together to keep the hose from disconnecting. It worked well, but it's janky and of course a pain to connect/disconnect whenever you start and end the job.

Perfect for stripping paint from boards.

a lot of issues with this tool that make it completely unusable even though you put a lot of effort and fight to make it work. due to the brushes around the shroud increase the thickness so that grinding wheel sit higher from the ground. depend upon the wheel thickness you need a little shimming if you can find a correct washers for shimming. I went to hardware store and bought a few and non worked so ended up using with no shimming but angle and push down the grinder which requires more effort also some adjustment for yourself to grind correct amount of surface. otherwise it dig in and scrapes much more than you would want. I wish the package includes a few shimming washers since 8-9 out of 10 people would need it with their tools second and biggest annoyance is the vacuum hose fitting. if you don't have the right shopvac with a hose in right diameter this tool is useless. Both of my shopvacs didn't fit to shroud tight and securely not matter what I did, including using some zip ties. as grinding in circular motion hose get lose and disconnected from the shroud and all of the dust goes every where. I wasted a lot of time to get the hose back on and secure but no avail and meanwhile all the concrete dust was all over the place. If I didn't buy and use this shroud I could have goten job done much faster. If you shopvac hose fits secure than this tool get the job done. But vendor does not include any hose fitting adapters which would 't cost more than a few bucks but it is not included in. so if you don't have right shopvac you also need to buy a shopvac. it was very frustrating experience for me.

Works completely perfect. Strong parts. Clamps tight. Great features. I'll be buying more soon different sized. I chuckled at a few reviews that concerned me (only a little) as I assembled it. I had already bought some washers ahead of time to shim my threaded attachments where they needed to be as I knew ahead of time, that of course things don't just fall into place perfectly when mixing different brands of grinders, attachments, and/or vacuums. I've used a lot of brands and attachments (mixed bag) perfectly with the provided parts, and I have a lot. I just shim with washers or whatever I gotta do, and only to make things real solid. I also taped the vacuum adapter to my hose to ensure it wouldn't fall, but I didn't need to. The hair has to be just even with the grinders attachments surface, and you should use proper bags (fine dust) and filters (fine) and don't let them get to full. Clean your hepa filter with compressed air and throw that bag away when half full. Keep the vac sucking to its full potential. The vacuum draws plenty hard enough through the "hair's" bottom that dust doesn't have a chance to escape, even a little. I'm an idiot for not having these years ago. Not one spec of dust anywhere and I didn't mask anything in an entire living room. I put on my dust mask, and set a shiny laptop on the floor next to where I was working and after 3 hours ran my finger across the top of it to look for a trace of fine rock dust or debris. There was none, I mean zero and I never even expected it to work that great. I'll be purchasing more soon. If your a pro or have common sense, or just somewhat handy and not afraid of making small adjustments, you'll love this thing, just buy the right stuff around the part itself. If your not real... constructive.. I guess you could be left with hurt feelings of not thinking to use washers to adjust attachment depth and a rachet to adjust the guard height (I hardly adjusted anything). It may not be turn key failproof with every brand no matter what, but only because that's impossible for what it is!? It takes like 3 minutes to install all components and to be ready to grind, with everything perfectly aligned and solid, and that's with several different tools and attachments now.

I was very pleased with the shroud. It needed some “adjustments” to fit my cheapo Harbor Freight angle grinder, but once I got it attached properly and hooked up to a shop vac, it was awesome. I needed to mark and then grind away slots where screws in the grinder were preventing the shroud from seating properly. Also, the hose on my shop vac was double the diameter of the exhaust tube in the shroud, so I had to Jerry rig that too.

The 4.5-5 inch grinder shroud works excellent on Mikita 4.5 and 5 inch grinder. I use it to grind down old thinset when prepping the floor for tile or membrane. I do a lot of residential work and this keeps the dust down and the customers happy. Will buy another just to have on hand.

Muy buen producto

It does a great job of removing the dust. Different sizes of sleeves make it easy to mount on your grinder. The swivel part of the shroud gives you access right against the wall. The hose attachment comes off a little too easily. Taped the connection ok!

Didn’t fit my 3 different grinders so wasted purchase

Todo muy bien