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Shun Professional Electric Whetstone Knife Sharpener

It was twice the price of our favorite electric knife sharpener, but could it perform twice as well?

What We Learned

The Japanese cutlery company Shun promises artisan knife sharpening at home with its new Professional Electric Whetstone Knife Sharpener ($299.95). The device has a small motor that spins a 6-inch whetstone covered by a plastic shield. It comes with two small plastic wedges that fit into a slot at the top and serve to guide the knife’s blade toward the stone at the correct angle: 16...

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