LINE10 Tools 4-1/2" Felt Buffing Wheel 7/8" Arbor for Angle Grinder (10 Pack) 16 ratings View Product Buy it on Amazon More info 1 ...

Angle grinders are categorized by disc/wheel size and amperage. Disc sizes can range from 4, 4.5, 5, 6, 7, 9, and 12 inches, but for most DIYers the 4-4.5 inch range will suffice.