The shank of the mandrel must match the size of the power tool collet or drill chuck, and the pilot diameter must be compatible with the size of the cartridge roll.
3M 45116, Cartridge RoII Mandrel, 1/4 in x 1-1/2 in x 1/4 in, 7010328350
$4.58
Factory Stock, 7-10 Day Leadtime
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.

3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 17181, Scotch-Brite Roloc Unitized Wheel Pack 987S, 2 in, 7000144150
Dynabrade 78112 2" Dia. x 60 Grit Premium Ceramic Non-Vacuum DynaCut Locking-Type Disc, 25/pack
Standard Abrasives 722809, PSA A/O Extra Disc, 5 in x NH, 60, 7010368721
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box 
