... Metal circular saw machine 1 Air operated,hydraulic. 2 Has the circulating coolong system 3 Burr free,no dusty CNC Metal circular saw machine1 Air operated,the hydrauic pressure ... .4/3.0KW2Variable level3.04KWφThe saw blade is suitable the size250,275,300250,275,300,315300,315,350350,400,455 NC Hydraulic pressure Automatic Metal circular saw machine