... of our best selling products.With advanced technology and best quality,we also offer our customers a ... knife38.5*12.7*61*16.0540/456Superiorities of vacuum brazed technology:1, Good coherence It owns a ... , Cutting granits,concrets,rebars,ceramics,glass,woods,plastics and so on,which is highly efficient.6, Strong ... in the east-China. Round edge knife and Vacuum Brazed Diamond Quartz Cutter bits(BQ106)