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Ultrasonic Chef's Knife

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The world's first ultrasonic chef's knife that uses battery power to send shock waves through the blade at 30,000 times per second to assist with cutting.

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Marques Brownlee uses this ✓ High confidence
"This is the world's first ultrasonic chef's knife and I had to try it. So I got my hands on it. The handle will send shock waves through the knife blade at 30,000 times per second."
From: This TECH Knife is Insane! ▶ 0:05 Jan 2026

Attribution: Marques is testing and demonstrating the knife throughout the video, showing personal hands-on experience