Magna-Lock USA HMM-618 permanent chuck
The Magna-Lock USA micro-mesh permanent chucks are the most versatile chucks available today. They feature major poles that are .125" wide, minor poles that are .020" wide, and non-magnetic separators that are .010" wide. Additionally, the chuck can hold pieces down to .001" thick and holds larger pieces equally as well. The chuck shown in the video is the HMM-816.