My company specializes in commercial office retrofits in New York City and residential construction and renovations in the surrounding suburbs. It seems like we can't open a gang box without having to drill, chip, or fasten into concrete. Behind all the stunning office spaces we build, there's nothing but a concrete box for us to secure all our framing, fixtures, and finishes to. We don't use as many nails as a stick framer does, but we use tons of anchor bolts to hold these places up. Our rotary hammers make it all possible.

Pulverizing concrete is pure power work. A battery is fine for my drill/driver, but considering what rotary hammers go through on my jobs, I was skeptical about cordless models performing well. I was also hopeful though, because when you're hanging out on a 20-foot skyjack or wiggling around in a crawlspace, you'd prefer not to have a cord...

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