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 52474 Vane Set (4pk)
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Insize 4700-400, STRAIGHT EDGE, 15.7", 6928640318443
3M 87661, Silver Depressed Center Grinding Wheel, DCGW, T27 Quick Change, 4.5 in x 1/4 in x 5/8-11 in, 7100147340, 10 per case
Dynabrade 07109 Vane Set (5pk)
Dynabrade 15101 Tension Arm (for Mini Dynafile II) 
