Our 3M Disc Pad Hub holds the face plate firmly in position to support a fiber disc with a 7/8 inch center hole, which is secured to the hub with a compatible retainer nut. The disc pad hub enables operators to select face plates with four different densities?Soft, Medium, Hard and Extra-Hard?offering the convenience of using a single power tool for multiple grinding applications. Face plates are sold separately.

Dynabrade 14248 Belt Guard Assembly
Dynabrade 58506 3-7/8" W x 5-5/8" L Dynabug II Orbital Sander, Central Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 93172 4" Dia. X 1/4" Dia. Shank, 320 Grit, A/O, Spindle-Mount Sanding Star
Dynabrade 01435 Collet Body
Dynabrade 79824 3" P2500 Grit Dynasoft Finishing Film Non Vac Hook Face Disc, 50 per box
Dynabrade 02679 Shield
Dynabrade 48371 .4 hp Straight-Line Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet 
