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 45119, Cartridge Roll Mandrel, 1/8 in x 1 in x 1/4 in, 7000045771
$3.36
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.

Dynabrade 91428 1/2" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
Insize 2197, LARGE RANGE DIGITAL RADIUS GAGE, R1(4-590"/100-1500mm), R2(4-590"/100-1500mm), 697409778087
3M 04281 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Very Fine, 4 in x 132 in, 7010292398
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
3M 16066, PPS Mix Ratio Inserts, Mini (6 fl oz), 7000120511
3M 97421, Aluminum Foil Tape 3380, Silver, 72 mm x 45 m, 3.25 mil, 7010375681
3M 49688, PSA Cloth Disc 348D, 80 X-weight, 10 in x NH, Die 1000C, 7000118869
3M 16609, Accuspray Atomizing Head, Red, 2.0 mm, 7000045543 (4 Nozzles/Kit) (6 Kits/Case)
3M 95725, Venture Tape Metal Building Facing Tape 1552CW, White, 72 mm x 45.7 m, 7010313505
Standard Abrasives 713296, Aluminum Oxide Handy Roll, P320 J-weight, 2 in x 50 yd, 7100034517 
