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 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
ACS Diamond Cloth Belt, CX1250 1" X 49" 125U
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 13767, Scotch-Brite EXL Unitized Wheel, XL-UW, 8A Coarse, 3 in x 1/2 in x 1/4 in, 7010365791
3M 19770, Utility Cloth Sheet 314D, 9 in x 11 in P120 J-weight, 7000000358
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 05027, Utility Cloth Roll 211K, 150 J-weight, 1-1/2 in x 50 yd, Full-flex, 7100031693
Standard Abrasives 713296, Aluminum Oxide Handy Roll, P320 J-weight, 2 in x 50 yd, 7100034517
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Standard Abrasives 840132, Quick Change Surface Conditioning FE Disc, A/O Medium, TSM, Maroon, 1 in, 7000046851, 50 per case
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 14502 Scotch-Brite Surface Conditioning Belt, 3/8 in x 13 in, A MED, 7100103026
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102 
