OMTech Galvo 20W Compact and Integrated Fiber Laser Engraver for Metal with 4.3" x 4.3" Working AreaSKU:? FMM R2MN US 20W Marking Laser: With a durable laser source that lasts up to over 100,000 hours, OMTech's fiber laser marking machine allows you to create a vibrant array of designs on various materials including metals, plastic, stone, and more! Superfast Speed: Our fiber laser etching machine works at a whopping 10000 mm s, cutting metals up to 0. 3 mm with an accuracy of 0. 01 mm to render intricate images perfectly. The high speed