... working speed could be: 72m/s. 1) Flat type cutting wheel of reinforced style2) Coarse surface, used for metalThis series ... . speed100x2.5x160.7/25/122/800/14300m/min105x25x162.25/50/117/300/14300m/minCongeneric ProductCS Focus cutting wheel/disc Dia:100 ... ,105,125,150,180,200,205,300,350,400(mm)Thickness:0.5 ,0.6 ,0.7 ... ,pls feel free to contact us. Flat cutting wheel for metal