Special for 7mm, 8mm, 9mm, and 10mm glass. Use for PE edge, FA edge or R angle. Install on shape machine or arris machine in the rotation of 2880r/min. Sharp, few chips, no burn on glass edge, wear resistant, good balance without shaking or vibrating. Configuration: For shape machine, one rough grinding wheel as position one and fine grinding wheel as position two (Pos.1 80#/120# + Pos.2 240#). For arris grinding machine, one wheel requests as 240#.