As contractors in New York City, my crew spends most of its time pouring, cutting, drilling, and anchoring in concrete. For some framing and all mechanical and electrical work, we use rotary hammers on a daily basis to attach virtually anything to concrete, and the tool we reach for most is a 1-inch rotary hammer with three operating modes: rotary hammer, hammer only, and rotation only. The lightweight, compact size and ability to shift from hammerdrilling to chipping to simple drilling, and even driving, makes it the most versatile tool on our jobsites.