Added Adaptability
The 3M Disc Holder Adapter is a simple way to equip your power tools and sanders to use larger 5/8-11 threaded disc holders or quick change (integral 5/8-11 hub) abrasive products. The adapter conveniently screws onto the tool spindle and converts the smaller external threaded shaft to a 5/8-11 external threaded shaft. This allows you to use an even larger array of discs without needing to buy a completely new tool.
3M 22970, Disc Holder Adapter 9, 5/8-11 External 3/8-24 Internal, 7000046093
$15.19
Factory Stock, 7-10 Day Leadtime
Our 3M Disc Holder Adapter is used to attach abrasive disc holders with 5/8-11 center holes onto power tools equipped with smaller spindles. The interior threads screw onto the shaft of a sander or other power tool, effectively increasing the size of the tool shaft to accommodate a product with 5/8-11 disc holders.

Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Dynabrade 61201 RaptorVac Electric DrumVac Kit, Dual Operator, For Use With Tools
Dynabrade 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
Dynabrade 32015 Wet Hat Filter (For model 61205)
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 14000 Dynafile Abrasive Belt Tool 
