The parts were marked with a 20 watt q-switched ytterbium fiber laser and 160 mm focal length lens. The parts were surface etched and anneal to create a contrasting mark.

Material: Steel
Power:
     Black – 4 Watts
     Brown – 4 Watts
     Yellow – 18 Watts
Method used: Etching
Frequency: 40 kHz
Depth: Surface
Speed: 5 inch/second
Laser Type: Q-Switched Fiber Laser
Focal Length Lens: 160mm
Cycle Time: 0.65 seconds