... 80mm (special format can be customized)Marking Speed2-4 per second (4 # characters)Marking Depth0.01-2mm (depending on ... connecting rod, engine, cylinder, and various mechanical parts, machine tools, hardware, metal pipes, gear, pump, valves, fasteners, and various ... name, trademark logo, icon, etc. Applicable material: metal, glass, ceramic, plastic, etc. Desktop pneumatic marking machine for metal