3M Disc Pad Holders have a center hole with internal threads-choose the thread size that matches the external thread size of your right angle grinder. T-shaped hooks securely hold a surface conditioning disc and provide quick and easy disc attachment, removal, and re-attachment. The hook-and-loop feature enables the disc to be used and re-used for the extent of the abrasive life. Discs are sold separately.
Our Scotch-Brite surface conditioning discs and light grinding/blending products (sold separately) deburr, clean, blend, and finish a wide variety of materials. Using surface conditioning products with a 3M disc pad holder generates finishes suitable for paint.

Dynabrade 52632 4-1/2" Dia Right Angle Depressed Center Wheel Grinder, 1.3 HP, 12,000 RPM, 5/8"-11 Spindle
Dynabrade 22070 Downdraft Table Accessory Pack (Air Manifold, FRL and On/Off Air Valve)
3M 76623, Roloc Disc 777F, 50 YF-weight, TR, 1 in, Die R100N, 7000045619
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Insize 4722-200, VERTICAL AND HORIZONTAL BENCH CENTER , 6928640313790
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069 
