According to reviewers, this is one of the top rotary tools on the market. It has an impressive 4.7-star rating, which is based on more than 12,000 reviews. Additionally, 85% of all reviewers were ...

BPMs on a rotary hammer drill fall in the 3-6,000 range. We drilled two holes, in a concrete block, one with each hammer drill, using the same type of 3/16-inch masonry bit to demonstrate how they ...