Handmade according to an exacting process, Kramer chef's knives sell for $10,000 or more. They're beloved by chefs and collectors for their keen edges, thoughtful design, and beautiful finish, and demand is such (a New Yorker profile never hurts) that anyone who wants to buy one must now sign up for a lottery in which you can win a spot on the years-long waiting list for a knife.

But Kramer fans are about to have an easier time of it: Bob was in New York this month to announce a new partnership. I took advantage of the visit to pull him into the PopSci video chamber so he could demonstrate dramatically just how effective his knives are.

The knife he's wielding in the video is not one of the hand-forged beauties, but a mass-produced Kramer. Zwilling J.A. Henckels, one of the largest knifemaking companies in the world, has just put into production a line of Kramer-designed knives, which are made of the same high-carbon 52100 tool steel as the basic line of handmade ones.

I recommend watching this full-screen.