for cutting marble, granite, glass, FRP, ceremics, tiles etc. sharp, edgy, chip free and long service time. Jiu Feng Diamond Tools CO., LTD Quality First, Honesty, Seeking for Perfection, Reliability1. SpecificationsBase body65MnBlade materialcorundum & MnGrit120# /150#Outer diameter180mmThickness1.6mmHole diameter20mmSpecialtyflange holeWorking width6mm Outer diameterBorediameter(mm) ...