PDFWAC 296-806-45004
Safeguard work-holding devices (chucks).
You must provide a fixed or movable guard, device, awareness barrier, or peripheral cover over areas exposed to the operator on work-holding devices or chucks when:
(1) They are in the clamped mode and have parts that extend beyond the outside diameter of the holding device.
(2) They have an irregular shape to the periphery of their body.