Gun It and Go. With the Crawler CR01 scaffold-moving device, you can turn almost any scaffold with casters into a motorized unit. Its drive wheel — powered by the user's cordless drill mounted to the steering tiller — can roll nearly half a mile on a single battery charge of the largest 36-volt drills, says the maker. The unit telescopes down to 79 inches to fit through standard doorways and elevators, and up to about 10 feet for elevated use. An auto brake keeps the scaffold in place. Units can be found online for $776. Crawler, 866/572-8297.

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