Just when you think you've already seen the ultimate cordless drill, stepladder, and framing nailer, along comes the annual Specialty Tools & Fasteners Distributors Association trade show. At this event, hundreds of manufacturers show a mind-boggling array of construction products - including new stock-in-trade tools with surprising upgrades - to distributors and retailers. The latest show was held in November in San Antonio, and JLC made its usual pilgrimage to see what's noteworthy. Here are some of the products that really stood out.

To use Bosch's futuristic Wallscanner D-tect 150 wall/floor scanner, you turn it on, select one of seven modes for scanning anything from deep concrete to drywall, and then roll the scanner slowly and continuously over the surface on its four rear wheels. The tool's "Ultra-Wide Band Radar Technology" detects wood and metal studs, live...

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