K40 Laser Upgrade Sold Direct on ebay - Fantastic prices on K40 Laser Upgrade
K40 Laser Cutter Upgrades. Jun 6, 2020. The K40 is a 40 watt CO2 laser system that is commonly available on eBay. There are a lot of variations with the K40 but most have similar components. It is a basic limited feature machine usable for cutting or engraving thin plastic or wood. K40 40 watt CO2 Laser. Below is an example of what a cut looks ...