We don’t promise the knives from Cut Brooklyn can slice through soda cans, but then again, they don’t cost $10,000. Still, if you do own a knife in the $250 to $600 range, which is about what Joel Bukiewicz’s handmade ones run, it’s probably a good idea to know how to properly use it. To that end, Cut BK has launched a twice-monthly knife-skills class, the first of which takes place June 15, from 7 to 9 p.m. Richard Krause, a chef, will teach the $90 workshops, which cover everything from “the mechanics of cutting” to knife sharpening, which we suppose they know a bit about over at nearby Lucali.