Conversion. Food machinery plant. Operator of this universal milling machine is John J. Morris, shown here cutting steel disk covers for his company's normal product--cube steak machines. Today Morris uses the same machine adapted to war subcontract work --cutting of large hexagonal nuts for a government arsenal. "Hexing a nut" is a very simple job with a machine designed to shape the entire nut in one operation, but this machine is not available and time is short. Morris, therefore, turns the round steel stock three times, cutting two sides at a time