Cordless Rotary Hammer Drills
Drill and chisel holes in concrete and masonry with cordless rotary hammers, which provide high-impact, low-frequency strokes. They have a hammer-and-rotate mode that spins and thrusts the bit to drill larger-diameter holes in harder materials than hammer drills. They are also known as SDS drills and combo hammers. For light demolition, their hammer-only mode chisels and chips. The maximum hole size a hammer can drill is its solid bit capacity, but choosing a hammer based on its optimal drilling range assures that the instrument will give consistent results for hole sizes within that range. Drilling through holes, setting anchors, and removing bricks are all popular uses for rotary hammers. These cordless tools work in locations where there is no access to wired power, avoid the tripping hazard of a cable, and are powered by brand-specific batteries.