The primary advantage of a Magna-Vise is its ability to hold non-ferrous (non-magnetic) materials—such as aluminum, stainless steel, copper, or plastics—securely on a standard magnetic chuck.
How it Works: A Magna-Vise set consists of two precision strips. When placed on a magnetized chuck, the magnetic flux holds the blocks themselves firmly to the table. The blocks are designed with a "pinching" or mechanical clamping mechanism on the interior. When you place a non-magnetic workpiece between the blocks and tighten them, you achieve powerful mechanical clamping without using traditional clamps that obstruct the work area.
In short, the magnetic chuck holds the vise, and the vise mechanically holds the non-magnetic part. This combination provides a rigid setup for grinding, light milling, and inspection, while leaving the top and sides of the part open for machining.
Need a visual? Check out this video: https://www.youtube.com/watch?v=l9fs_MnVZJc(https://www.youtube.com/watch?v=l9fs_MnVZJc)