Frequently Asked Questions about Electromagnetic Permanent Magnetic Chucks In recent years, electromagnetic permanent magnetic chucks have gained more and more attention as a means of fixing workpieces in machining processes. In a typical machine shop, the use of magnets can reduce setup time and improve access to all sides of the workpiece. They are particularly invaluable as a tool for fixing workpieces in surface grinding applications. Magnetic Chucks for Surface Grinding - .....