For bench motors with shafts smaller than 1 inch, a 3M™ Telescoping Wheel Flange Adapter (Part No. 5) can be inserted into the center hole to fit 1/2 inch, 5/8 inch, 3/4 inch or 7/8 inch shafts. When a greater thickness of bristle discs is needed, 3M™ Spindle Extender Adapters (Part No. 30134) can be added to increase the disc capacity of the flange adapter. These additional adapters are sold separately.

Dynabrade 78405 2" x 1" x 1/4 Shank, 80 Grit, Dynabrite Interleaf Wheel, 10/pack
Dynabrade 92825 - 3-1/4" (83 mm) Dia. x 3" (76 mm) W Standard Dynacushion Pneumatic Wheel
Dynabrade 64947 Air Cylinder
Dynabrade 56321 6" Dia. Vacuum Disc Pad, Hook-Face, 52 Holes
Dynabrade 62346 Interface Ring
Dynabrade 79840 DynaBolt AO 4" x 1/4" x 3/8" T27 Grinding Wheel, Box of 10 Discs
Dynabrade 56893 6" Dia. Self-Generated Vacuum Dynorbital Supreme Random Orbital Sander, 3/8" Orbit 
