Crescent realized that there was a growing desire for hand tools that featured ergonomic benefits and wanted to fulfill this market need with their line of screwdrivers. But they wanted to go even further: provide superior functional performance that could be quantifiably measured.

We performed carefully designed and controlled tests to isolate the factors that enabled users to generate the most turning force with the least amount of strength. We translated this knowledge into a handle design with a "reverse taper" that conforms naturally to the shape of the users' closed palm. We also incorporated scalloped grooves designed in a way so as not to pinch the user's skin, while providing surfaces that translate muscular input into torque generation.

The functional performance of Crescent's new ergonomic screwdriver is measurably superior to all competing drivers. When tested by attendees at the National Hardware Show, the collective reaction was "Wow!"