XtremepowerUS 1180W SDS-Plus Electric Rotary Demolition Chipping Hammer 1-1/4" Combination Rotary Hammer Drilling Chisels & Drill Bits Set with Case

This tool is great, especially for the price. I purchased in it for approximately $80, which is about the same cost as a single day rental of a professional quality rotary hammer where I live. Starting from that standpoint, this was already good. I'd been looking at other tools that all had mixed reviews, and I chose this one based on the 20 joule output and another review that described it as dispatching lava rock with ease. My need was for drilling granite, but I figured this tool would get by ok on that task, though granite is much harder than lava rock. However, this tool exceeded my expectations. It had plenty of power to handle drilling 14mm holes in granite with ease, provided you use a high quality bit. I did not use the drill bits that came with the tool for the job I show in the pictures, but I did try the chisel and point demolition bits at a later time, and those bits turned out to be pretty soft. So that is one downside. But the cost of the tool is so low, that helps save money to spend on high quality bits purchases separately. Back to the power of this tool. It was able to easily drill 14mm holes in granite 6-8 inches deep in about a minute. Much faster than I expected. The tool DOES get hot while operating, so I don't think it would be suitable for sustained professional use, but it seems fine for occasional short term use / hobbyist needs. And at the end of the day, I observed a small amount of grease seepage through the seams of the metal casing parts, but nothing overly concerning. The tool does have an easily accessible grease reservior, so I think this is an expected outcome of normal operation / tool maintenance. For reference, we drilled about 16-20 holes in the course of breaking up this ~1000 pound boulder. What others have written about instructions is true: the instructions provided are minimal at best, and some of the control icons are not consistent with their function. For example, the function dial on my tool had icons for hammer + drill and drill only, but the "drill only" function news actually "hammer only". This is actually fine by me, because those are the functions I wanted in this tool, but I thought it would be helpful to warn others in this review. Someone in another review mentioned confusion about the bread / wrong grease: I believe the container of grease supplied with the tool was for coating the shanks of bits to make them easier to remove from the chuck after use. It was only after I finished !y job that I realized the function of the rubber disk pictured with the tool is meant to be slipped over the bit to prevent debris from getting into the chuck, especially when drilling overhead. A note on tool operation: The chuck reciprocates considerably as part of the hammer function. However, if you press too hard, you will actually degrade the tool performance. It operates best with moderate pressure so that the chuck can reciprocate freely. Oh, and at first glance, the case seems nicely made and sturdy, but that impression comes from the weight of the tool and included accessories. The case itself looks good, but it is made with very thin and rather brittle plastic. Apparently it hit the case on something (not hard, I don't recall doing it actually), and a small part of the case shattered. I'm not really complaining about this, nor rating it down for this fact due to the low price of the tool, but I felt I should warn prospective buyers so they know to be careful with it. One last point: even with the extended warranty, this tool still cost less than competing models that had lots of customer complaints.

UPDATE : After many trials I found the only accesory chisel that fits in this hammer. It is the Champion Chisel, 17mm Harbor Freight Shank, 3pc Chisel Set. You really only need the 3 inch one but this set comes with all three. You can buy just the three inch one elsewhere but hae to wait for shipping. Made quick work of a bathroom demo. Tiles came up like butter and easy to remove all the thinset leaving the foundation unmarked. The company should offer more accesory chisels. I would love the shovel chisel to dig dirt. I was a little hesitant buying this because it is so cheap. However this is a great item. It is very sturdy and well made. It comes with two bits. It had not problem demoing some concrete steps. It paid for itself after the first few minutes of use. I also used it to tear up a bunch of patio tile. It went through it like butter. I would prefer if it came with a wide floor chisel. You need that if you want to rapidly remove some tile without damaging the underlying concrete. I bought a floor chisel separately. I previously had a harbor freight demo hammer that last through just one kitchen demo and cost more This one seems to work better and looks like it will last much longer. Remember to add grease when it runs out. It comes pre-filled with grease for your first use. This is perfect for the DIYer but I think even a professional remodeler would get good use out of it.

Good little jackhammer (hammer drill) that comes in a nice case with two bits. Like other reviews the only reason for 4 stars is that the instructions are of NO value. But, the tool is pretty simple to operate. There is no oil to be used so forget the instructions indicating this. You put grease in the gear case where indicated. The tool is small enough to operate easily. I was needing to break up terribly compacted clay to dig a hole for a tree. Because I was digging the hole pretty deep, the tool is small enough to allow me to get down deep in the hole using one hand. It runs smoothly and does the job. I am very pleased and only wish that they would get someone who knows English to rewrite the instructions for those needing it. Other than that, I really like this tool.

Update 12/5/22: I forgot to take pictures from the start. I used the hammer to make a hole 20 in. diameter, 30 in. deep in clay soil. Took 2 hours (including laying 250 ft. of extension cord through brush). This was a lot easier than manually digging. The hammer worked well with a 3-inch chisel bit. But, the cord strain boot broke. The tool did not got too hot since I never held the trigger for more than 2 minutes at a time. Next up is to break down old concrete. Initial Review: The item arrived in a case packed upside down in a beaten-up box (tape torn and labels ripped off) inside another box. Luckily, all the items were present (albeit scattered around). The toggle on the device does not line up with the selection. It is 1/2 inch off, but useable. The included SDS-plus chisel bits fit well (make sure to use the provided grease). The rotary hammer is as heavy as a pick and shovel. A 100 ft. 12 gauge extension cord weighs more. The noise produced is quieter than I expected (but wear hearing protection). I used hammer mode on a 30 year old dirt pile. It effortlessly split the clay and broke up some of the embedded rocks with the pointed chisel. Then, I used the flat chisel on some earth around a tree stump. It quickly loosened the soil and cut some of the roots. I bought this to break up some old concrete posts footings and a 50 year old concrete slab in my backyard. But, it started to rain before I got to test it further and this was how far I got. Updates to follow.

(Review by Doug's wife): I LOVE this tool. I was trying to dig a trench in sandstone/clay with a mattock and long digging bar (and a lot of tears) when a contractor neighbor suggested I get a demolition hammer. I searched and came up with this tool and have found it useful for so many projects. It's heavy, so digging the drainage trench was hard, but I was able to complete it in a little over two weeks. The drainage contractor told me it would take me months and wanted to charge me $4,500 for the job. It ripped up ceramic floor tiles in minutes, and at an estimate of $10 per sq ft to demo tile from the tilers, this tool is saving me a fortune. It totally removed a massive amount of leveling cement previous owners used to cover up rot in a bathroom, and easily broke apart some cement footings for an old deck. And it breaks up soil for planting in this horrible, horrible clay and sandstone so I'll be using it for a long time to come. It has paid for itself many times over. I would buy this again in a heart beat.

Work horse, so far so good. Will update with any changes. Ran about 25 8mm concrete anchors into street concrete with no problem. Make sure to keep greased in top of unit gearing. Decent case. Same quality and speed as my oldish (2015) makita SDS

At the time I purchased this tool, it was $99. For that price it's a pretty amazing piece of equipment. It's definitely heavy duty... it probably weights at least twenty pounds. That's a good thing though; you can let the weight of the tool do some of the work for you when working downwards as you'll most likely be doing. If you have to work where you have to hold the tool up, then it sucks a bit, but I don't know if there's a light jack hammer out there. It comes with a decent case as well. A couple of small issues, after an hour or so of concrete work the chisel tip is pretty worn. Perhaps that's normal, but I imagine this isn't being shipped with top of the line chisels either. Again, at the price, the fact that is comes with two at all is a bonus, and even in its worn state the chisel is still busting through concrete with ease. The manual is a typical Chingrish mess. But it is at least thorough. Honestly. if you've got a light or medium sized demo job, you can't really go wrong with this tool that's probably cheaper than a day's rental of one from your local hardware store.

We spent about 8 hours (over the course of a a couple weeks) breaking up & hauling away an old concrete & brick porch. This unit is a great value in that it would have cost us a lot more to rent a tool for the job we did. After about four hours of use, the tool switched from hammer only to hammer & rotation, while I was sinking the bit into concrete. The tool ripped itself out of my hands. I double checked and made sure it was locked in the "hammer only" mode, and about two hours later it happened again. The second time it sprained my wrist pretty bad when it suddenly spun out of my hands. This tool has a whole lot of torque when it changes over to rotating. I'm glad it happened while I was using it and not my wife, it probably would have broken her wrist. I would not recommend this tool to anyone. Either buy a tool which only has the hammer mode - or buy spend the money to buy a better brand.