Description of ๐จ Bosch HC8015 Spline Rotary Hammer Drill
Wave design transfers energy to bit more effectively for up to 40 percent faster drilling versus previous design. 17 In. usable length, maximum core depth of 2-5/8 In. Integral shank for better power transmission. For masonry/concrete drilling. One-piece design.
Works great but too big for my rock drill. I was only able to drill about an inch before the clutch in my drill began to work. Due to the limitations of my drill bit, I couldn't push enough and had to "hold" it to drill deeper. With a big punch, nothing can stop this little one. I had to take a 3 inch chisel. My hammer drill was a 1-1/2" Hitachi FYI.
The description says "Maximum core size 2-5/8" deep." I just cut a 2" hole in an 8" thick concrete wall. It worked great - the cores broke off into 2-3 inch pieces from the vibration of the hammer drill (Makita HR4041C). There were no instructions included, so I did my best to guess how to use it. "Dry drilling" is no problem. Once the hole started well I removed the pilot drill (drill in the middle) and the rest of the way through the wall went smoothly. I estimate the hammer drill took aboutโฆ