(New York Times) Last Christmas, Sears had a brisk seller in the Bionic Wrench, an award-winning, patented tool with spiffy lime green accents. This holiday season, though, Sears has a special display for its own wrench, in the red and black colors of its house brand, Craftsman.

One customer who recently spotted the new Craftsman tool, called the Max Axess wrench, thought it was an obvious knockoff, right down to the try-me packaging. “I saw it and I said, ‘This is a Bionic Wrench,’ ” recalled Dana Craig, a retiree and tool enthusiast in Massachusetts who alerted the maker of the Bionic Wrench. “It’s a very distinctive tool,” he added.

The tools have one significant difference, Mr. Craig noted. The Bionic Wrench is made in the United States. The Max Axess wrench is made in China.

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