High speed depressed center wheels are resin-bonded abrasive tool with special fabric reinforcement mesh bearing high tensile strengh,shocking and bending by using with peripheral velocities up to 80m/s meet high grinding effciency and great safety in production.To raise the strength, the wheel bores are additionally inlaid with metal rings. The following is the main specifications: 100x1.0x16mm 100x3.0x16mm 115x1.0x22.2mm 115x8.0x22.2mm 125x1.0x22.2mm 125x6.0x22.2mm 150x1.6x22.2mm 150x8.0x22.2mm 180x2.5x22.2mm 180x8.0x22.2mm 230x2.0x22.2mm 230x8.0x22.2mm 300x3.0x25.4mm 300x4.0x25.4mm 350x3.0x25.4mm 400x3.0x25.4mm