Lens
Laser cutting machines are remarkable because they can accurately cut metal. They can cut metal 2X faster than plasma cutters. Plasma lasers have a cutting accuracy of 0.1mm. Laser cutters can be used to cut metals with a cutting depth of.05mm or 0.02 inches.
The beam quality of the 20W and 30W lasers is less than 1.5M2, while that of the 50W laser is less than 1.8M2.