Review on Bosch RHA 50 SDS Plus Right Attachment by Ernest Duckett

I needed to drill a hole 3/4" deep x 4" deep in a narrow spot for the bottom drill support. This did the job but took about 15 minutes to finish the hole. It may not matter to the homeowner, but to the contractor, time is too precious for something like this to happen. I was a little skeptical at first as I couldn't figure out how the hammer function would be routed 90 degrees. change gearbox. But the folks at Bosch I spoke to before buying the bit said it reduces tool efficiency by about 40 percent. I'd be fine with a 40% drop in efficiency, but a 95% drop is way too much. I'll try a few holes where I can drill the same hole with and without a bit to see the normal. I really have no idea if this app is working as it should or not what the real problem is.