Special for 12mm, 15mm and 19mm glass. Use for PE edge, FA edge or R angle. Install on shape machine or arris machine in the rotation of 2880r/min or CNC machine. 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# + Pos.2 240#). For arris grinding machine, one wheel requests as 240#.