The parts were marked with a 10 watt q-switched ytterbium fiber laser and 160 mm focal length lens. The parts were surface etched, to create a contrasting mark. The parts were marked with two different serial numbers, each with its own cycle time. The samples with the serial number 4088605 resulted in a cycle time of 1.82 seconds. The parts were marked at 25 inches per second using approximately 8 watts of power with a frequency of 25 kHz.