The Roloc design makes changing discs easy: the threaded male button on the back of each disc allows firm mounting to Roloc Disc Holders. Discs lock securely in place with a half-twist, and can be removed with a half-twist in the opposite direction. Discs are colour-coded or have colour-coded button for easy grit identification.
Use with right-angle grinders.
Discs are available in 3 diameters: 1", 1-1/2" and 2" in Coarse (brown), Medium (maroon), and Very Fine (blue).