TR Industrial TR89305 Electric Jack Hammer for Demolition, 60-Joules, ETL Listed

I had a brick patio with a thick concrete slab under it. The weeds had come up through the bricks, and many of them were loose. Rather than repairing the patio, I decided to remove it. This turned out to be a huge undertaking. I tried removing the bricks with a hammer and chisel and soon learned this would take forever. I considered renting an electric jackhammer, but it was going to be at least $75 a day. This job would take several days to complete, and I didn't want to feel like I had to rush and wear myself out in the process. I read the reviews for several different jackhammers, and decided to order the TR Industrial TR89305. I'm glad I did. This tool made quick work of removing the bricks. I learned that using the 1" chisel and working from the end of each break allowed me to remove them without breaking many. A friend was going to reuse the bricks. Once they were gone, I began breaking up the slab. The slab was 14" thick on the outer edge. This jackhammer would break up the concrete a few inches down. I had to slab off some and go back for another bite. I tried the pointed bit, but it tended to get stuck. I used the 1" wide chisel for almost all of the job. I applied silicone grease to the bit before inserting it into the jackhammer. At first, the bit bit would stick in the chuck of the jackhamner when I lifted it from the concrete. I would have to raise the jackhammer and use it to tap the bit into place before breaking more concrete. Over time, the bit loosened up and didn't cause this problem. I worked in a line about 3" from the edge. I would hammer some and move to another spot. I would have to go over each place a few times before the slab would break. As I got farther from the edge, the concrete became thinner and much easier to break up. On the last day of the job, I figured out that by locking the trigger in the on position, I could guide the jackhammer with my right hand without having to squeeze the handgrip tight. I wish I had figured this out sooner because the vibration from the tool causes numbness and some pain. The numbness goes away over time, but not gripping the tool so tight is much better for your hands. The jackhammer performed well. It comes with oil that you must add before using the tool. I bought a jug of Rotella 15-40w synthetic blend oil. After using the tool for about 30 hours, I did have to add some oil. Some oil seepage by the seal is common in this type of tool, and I don't think this is a big problem. I am very happy with how the jackhammer performed.

Solid machine. Arrived well-packaged. The rolling, plastic case with top and side handles is very helpful transporting the tool. The tool arrived filled with oil and during 8 hours of use there were no leaks and none of the screws/bolts vibrated loose.For my need, the lighter weight (compared to the industrial hammers from the local rental place) was essential because I had to use this horizontally as well as lifting up 3 feet off the ground to the top of the knee wall that had to be demolished.If you have never used a jack hammer before be aware of not overworking the tool. Start with a small section, establish a fracture line and then gradually work out from there. See where the fractured concrete leads you to new weak points rather than trying to "bull" the tool through hard spots.The bits have to slide freely in the chuck (a little additional grease is helpful). If the motor is turning but the bits are not "hammering" lift the tool and re-position, tapping so that the hammer engages the bits. (This also happens even with the larger, industrial machines from the rental places).The 8 inch thick by 3 foot tall wall of 80 year old concrete was within the capabilities of the tool, as long as I took my time and was smart about nit. The wall was filled with large stones (to supplement the small gravel in the concrete). The hammer will not break through these granite rocks. I had to work the concrete around them.Given the large amount of work I have to do over the next year in removing concrete as part of a barn renovation (failed foundation knee wall, driveway pad), if this tool continues to operate as it has it will be a bargain. Time will tell, but as far as a first impression, this is a good value.

Cheaper than paying some one to remove concrete

At first, I was doubtful. Then I decided to use it to demolish a driveway that had 12" thick concrete slabs... It took a few days, but this breaker hammer got the job done just fine. Just keep an eye for the oil. You must refill it every now and then. I used rotella 15w40 for diesel trucks. No issues so far. What is most impressive is that I tried using a Hilti 3000 breaker (top of the line $3000 hammer) alongside and compared them. The difference in performance was minimal. Yes, the Hilti is a little more powerful, bigger and easier to grab onto, but other than that, there was little difference in performance. Not to justify the abismal price difference between them. I think that says it all... I would love for it to have different handle types because sometimes it is hard to keep posture ( it's heavy). All in all, awesome breaker hammer to tackle anything from medium to heavy jobs. We will see how long it lasts, but so far it looks solid and it has paid over itself a couple if times now.

Bought this chipping hammer to remove concrete for a curbless shower that im building for a customer. It worked well. Got the area all broken out in one day by myself. I usually rent one from the hardware store but no need to anymore. Read the reviews and they were spot on. It comes with a rolling case, 2 bits and safety items. I filled it with the oil that was provided and went to work. As others have said it leaks oil but nothing excessive or crazy. If I could give it 10 stars I would. Definitely buy this if you are in the market for a cement chipper.