... Cutting hard metal,like general steels,ferrous metal,aluminium,iron,angle iron,brass,bronze,carbon steel,casting,railway,non-ferrous metal ... room-cutting drill bits,steel bar,tubing,metallurgical sectioningAutomatic production line:ensure the stability of our productsTest Quality1.Performance testing ... the tool so that the wheel is at a perpendicular angle to the workpiece being cut;5.Keep a light ...