Item : B00004SUPW Customer Reviews excellent I-lost-my-key tool by .. Travisji Corcoran (Arlington, MA USA) A door at the office got locked the other day. ...and we don't have a key for it. A friend came in, eager to try out his lockpick tools, because that's what all the hip kids at Defcon do these days. That took 45 minutes and didn't get the door open. A valiant attempt, and I appreciate the willingness to help out. Today I went in the office, along with my Bosch electric rotary demolition hammer. The chisel tip bit deformed the face of the lock in about 10 seconds, and then strange sounds started coming out...just before bezel deformed an popped off, the barrel of the lock sunk into the door a half inch and rotated 90 degrees, and the door popped open. From the inside, I backed out three screws, slapped the lock barrel with a hammer, and picked up the pieces off the floor. The lock barrel was almost too hot to touch from the high speed abuse it had taken. Advantage: brute force, by 44 minutes and 42 seconds. I've also cut holes through cinderblock and concrete slabs with this tool. Recommended. rob in Marathon by .. Robert M. Quill (Atlanta, Georgia United States) I rented a copy of this tool locally--it was brand new--I guess most of the entire stock of the tool rental store was destroyed last year during Hurricane Wilma. I wanted to see if it would work well busting out a second floor tub/pool that a previous owner had in the house. The tub/pool was on second floor but hung down into the first floor kitchen. The tub was 12 inch thick, overly/excessively reinforced with with 5/8 inch rebar throughout. The tub was 4 feet wide, 8 feet long, & 4 1/2 feet deep. The tool was working so well, that after one-day rental, I decided to buy one on Amazon to complete the project at my leisure. With a friend's help, we knoocked it out in two days & I could not have done it without this demolition hammer . . . EASY to use & hold but POWERFUL. I thought I'd sell the tool at about 1/2 of what I paid on Amazon after I was finished, BUT, I loved this tool so much I'm keeping it in my tool collection. This Bosch powerhouse is a keeper. Oh boy, if only I had this too years ago . .. It has a great storage case & easy to pull out, load a chisel & you're off. And it has a great long, heavy duty power cord built in so even if you need an extension cord, you have plenty of cord to keep it far out of your working area. I love, really love this tool, & of course, it lives up to the Bosch high-quality reputation. Oh, also got this on a 10% Amazon discount with free shipping . . . worth every single cent . . . This tool is idiot proof. Wish I would have bought it sooner by .. DIY'er (OC, CA) As a DIY'er, I was hesitant to spend this kind of money for something that I was just going to use for home improvement projects. However, after a year of struggling with trying to dig in my rock-hard clay soil, I finally gave in. I haven't been disappointed! Since this is the only demo-hammer I've used, I really can't compare it to anything else, but I'm very happy with the tool's performance and quality. Using this beast is a little bit of a workout, but I'm sure it's much easier than trying to handle a full sized jack - especially if you have any horizontal hammering to do. So far I've used it to dig out a good sized footer for a retaining wall, trench for drainage/irrigation lines, demolish a BBQ island built from concrete block, and break out a small area of 4" concrete sidewalk. What a timesaver! Bosch--The Best by .. Al Howell (Lubbock, TX) Very durable, reliable, quality is outstanding, it gives never ending power, can count on it everytime to get the job done. I highly recommend this great tool. Quality makes all the Difference! High Quality = Bosch! by .. Clay Caldwell (Boise, ID) I am trilled with this hammers performance. hands down Bosch is the Best!! Bosch craftmanship is superior, no complaints what so ever. I highly recommend