... Marking depth:0.01-0.4mm 3.Graphic preview 4.Powered by electromagnet 5.Alloy marking Application: It's applicable for ... of motorcycles, nameplates ,connecting rods ,engines ,mechanical parts ,machine tools, metal pipe, gear, pump, valve, fastening pieces, cylinder and ... (or customized) Min Character: 1×1mm (character size controlled by software) Marking Speed: 3-6 characters/second Marking Depth: ...