3M™, 7000148243, Cartridge Roll, Regular, 4.57 mm Pilot Diameter, 25.4 mm Pilot Length, 1/4 in Mandrel Shank Diameter, 3 in Overall Length
3M™ Cartridge Roll Mandrel is a tool attachment that holds an abrasive cartridge roll (sold separately). Together, the mandrel and cartridge roll enable the user to grind or finish hard-to-reach areas of a workpiece, such as angles and curves. The mandrel attaches to a rotary tool such as a die grinder or drill, and comes in different sizes to fit a variety of cartridge roll sizes.