Our 3M Disc Pad Hub enables operators to select face plates with four different levels of flexibility (soft, medium, hard and extra-hard). The disc pad hub holds a face plate firmly in position, and a center hole fiber disc is secured to the tool spindle with the retainer nut.
Disc pad hub and retainer nut has a M14-2 INT thread for use on grinders with M14-2 threaded spindle and can be used on all 3M Fiber Disc face plates. Use with 4-1/2 inch through 9 inch Fiber Discs with 7/8″/22mm center hole.

Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Standard Abrasives 708907, A/O Straight Cartridge Roll, 3/16 in x 1 in x 3/32 in 180, 7100103125
Dynabrade 50947 - 8" (203 mm) Dia. Non-Vacuum Wet/Dry Sander Disc Pad, Hook-Face, Short Nap
3M 53697, Scotch High Tack Box Sealing Tape 373+, Clear, 48 mm x 100 m, 36 Rolls/Case, 7100266182
Dynabrade 11078 Contact Wheel Ass'y, 5/8" Dia. x 3/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 90370 3/4" W x 34" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 78709 3/8" x 3/4"-B52 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 13501 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 1,800 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 94112 7" Dynacut Diamond Segmented Rim Cut-Off Blade 
