BLUEROCK Tools Model 4Z1WS Concrete 2-Speed Core Drill with Stand

I am a contractor and have used core machines many times over the past 40 years, all of which were high dollar units. I have always rented them before and now I don’t know why. This time I had a job that required multiple holes that had to be drilled on different angles. I made an adjustable base out of aluminium that tilted to the left and right with stops I could set 90 and the angles that I needed. I had to make 1 modification to the stand to lower the sq. tube in the core machine base. After mounting the base to my jig I made it worked perfect. I only drilled 2″ and 1.5″ holes. It took me about 3 hours to drill 20 holes from 4 to 10 inches in concrete and that included 8 holes at 90 degrees and 12 holes at 35 degrees.I an glad that I had to drill these angled holes, it forced me to make a adjustable mount and buy my own machine. I can’t believe the money I have wasted over the years. My employees love the machine and the jig I made. Some one needs to start making the jig I made , worked great.THANK AGAIN FOR THE GREAT CORE UNITSteve C.