The Super-Snap Mandrels are stainless steel, friction grip mandrels with an enhanced design that allows for a secure seating of Super-Snap Disks and Buff Disks onto the shanks. They are available in either durable, single-use plastic or stainless steel construction. Super-Snap FG Mandrel, Snap On, Stainless Steel 6/Pk. Designed for Super-Snap Disks and Buff Disks creating a secure seating of the disk onto the mandrel.