Cost was the same as an 8 hour rental.Figured it would work ok but not great. When I used this demo hammer it was AWESOME!We destroyed a tile shower, tile floor and 2” concrete slab in a bathroom in 3 hours including haul out of debris. This tool has PLENTY of power, tool bits were good quality, I did buy spares but never opened them. The handle absorbs the vibration, bit holder works well, easy to use, can’t say enough good things about this tool and the price was amazing.

UPDATE: At the bottom of the review I noted that there were no instructions about how to replace the motor brushes, even though a spare set came with the drill. In response to a question about that the company rep said they'd "try" to get the instructions from their engineers. I was skeptical that I'd get a final response. To my pleasant surprise they did! And so I've now bumped my rating from 4 to 5 stars.I had to drill several holes in concrete, and since I don’t anticipate having to do that a lot more I took a leap of faith and bought this product — one of the lowest price hammer drills I found on Amazon. For my purpose I was not disappointed at all.The entire package of things that came in addition to the hammer drill itself consisted of a variety of bits, some extra grease (needed to keep the drill in good shape), a rod to help limit depth of drilling, and a set of extra brushes, all in one nice, organized hard plastic box.I first tried drilling my holes with an old corded Craftsman drill (one that looked like most drills) that had a hammer function, and used Bosch bits made for concrete. Got basically nowhere after MANY minutes of trying: barely an inch into the concrete.When I got this hammer drill, and after reading the instructions, I put in one of the inexpensive-looking bits that came with the tool, not really expecting much, and started making my holes. I was more than pleasantly surprised. The tool and the bit made short work of drilling a pilot hole through about 5 inches of concrete, and following up with another supplied and larger bit gave me a nice, perfectly sized hole.One slight negative: Adding grease periodically is necessary to keep the drill working. The tube of grease that came with the tool wasn’t labeled to indicate what type of grease to buy when the supplied stuff ran out. I contacted the company (their email address is in the manual) and after a few days got a reply: basically any grease made to lube SDS drills (e.g., Bosch SDS drill grease), which this drill is. Readily available and inexpensive. So I’m cool with that.I gave only 4 stars, however, for the following reason. A set of extra motor brushes came with the drill, and that immediately suggested to me that the installed brushes (and so the drill) aren’t going to last a long time. I do not know that for a fact, however, and I will not be using the drill often so that may not be a problem for me. UPDATED: See beginning of review.I contacted the company by email about this too, and after a few days the person who replied didn’t know what motor specific brushes would be needed in case the ones supplied went bad, and they don’t know where to get another set. They also said there are no instructions about how to replace the brushes and the engineers who might know any of the above are “on vacation.” So, even if the installed set of brushes went bad the provided replacement set may not be worth anything if you can’t figure out how to replace them. (There ARE YouTube videos, but the how-tos seem to vary from brand to brand). Unlike some tools with an electric motor, there is no external cap to unscrew to just slide the old brushes out and put the new ones in.)One final note: The chuck does NOT take regular twist drill bits: you need to use "SDS" bits, which have a different shank that is best for heavy drilling. You can Google SDS drills (and bits) for more info; the bits themselves are readily available, and that's what most good concrete bits are.OVERALL: If you aren’t going to be doing the amount of concrete or other heavy drilling that a typical contractor might do, this is a great product at a great price, and I HIGHLY RECOMMEND IT.

We have a few larger more expensive name brand units like this in the shop for the guys to take to jobs,but I wanted as smaller lighter version for small bathroom tile demo jobs that would be easier to use in small spacesThis one was at least half the cost of the name brand types I was looking at and as it will not be used nearly as much as the larger name brand versions we have, I decided to pull the trigger and check it outWe have used it on only 3 small bathroom tile demo jobs so farso I can not give any type of long term/excessive use review on it yetBut for the 3 jobs that we did use it on (3 bathrooms right at 40 square foot each)It seemed to work very well not only tearing up the floor tile but also the mortar as well(make sure to use good and proper bits for the jobs intention)I do have to mention ...The case it comes with is absolute CRAP!!!the closing latch clips were broken upon delivery and even if they were not, they are so cheaply made garbage mold plastic that they would have broken after a few open/close uses anywayas well as the case itself is very thin cheap plastic mold productthe first thing I did was to purchase a heavy duty tool box from my local"Home Improvement Box Store" - that cost almost as much as this tool itself did to begin with :/that not only is tough enough for the tool and to be used/abused on the job and bouncing around in work trucks, but also has storage room for a heavy duty cord, a handful of varied need drill & chisel bits, gloves, safety glasses, ear plugs as well as rags and lubricant tubesOther then the absolute garbage tool case,the tool itself seems to be good so far, only time and many more jobs will tell

I had the small Bauer hammer drill and it was fine for most drilling work I have thrown at it but wasn't cutting it for light demo work. I was ready to get its bigger brother but they didn't have any at the first store I tried near closing time (despite the website saying they did). I looked on Amazon and this one was bigger and had its own bits for less money and I could get it first thing the next morning. I was a bit hesitant but after getting it and putting it to work this thing was a beast. The grease is replaceable and it came with a tool like a grinder wrench to open it. I did add some because I worked it pretty hard but it never complained. The Bauer one I have leaked grease profusely with way less abuse and its not serviceable. It did the job I wanted and the bits held up better than the cheap ones I had bought before but not as well as the Bosch ones I had. Overall if you have some drilling or light demo needs this more than did the job for me and I was pleasantly surprised with the overall quality it was an amazing find even with the odd name and color scheme. For reference I used it to break up 3 large concrete lumps that were once around some long gone wooden posts near my front porch. It was several hours of hammering to break them up to my satisfaction so I could park there. Sure a full size jack hammer would have finished the job much faster than waiting for one to get here and I really don't have a need for one and this was better than renting one as I have a solid hammer drill for future use.