Would highly recommend this core drill. Needed to core 5 holes to install fence posts in a retaining wall. This drill made light work of it. I attempted to core the holes with a core cutter and normal drill was virtually impossible as I needed to core around a foot down. With this I had the 5 holes cored along with the fence posts concreted in around 2.5hrs. Main thing id say would make sure you feed it with water, Don't make the mistake I made on the first hole drilling without water (it may get stuck) All in all a great buy and saved me alot of time and effort. To rent one was going to cost me £120 so made sense to buy this as will need it again for other work very soon.
Jimbo 
