Final answer:
A swiss-type turning center uses a collet to hold the workpiece tightly at the point of machining.
Step-by-step explanation:
A swiss-type turning center uses a collet to hold the workpiece tightly at the point of machining. A collet is a subtype of chuck that is specifically designed for high precision and rigidity. It consists of a cylindrical sleeve with externally threaded sections that provide a strong grip on the workpiece.