Compare with other brand our 40W laser module can even engrave metals without carbon content! Longevity & Lower Loss -- Upgrade 40W laser module with higher engraving speed, precision and stability meanwhile ensure a lower loss to prolong the laser module's service life. Simple & Safety Use -- Small and compact, convenient and easy to install. Come with a protect goggles, ensure a safety working process. 40W Carving Material -- It can engrave 201/304 stainless steel, titanium steel and anodized aluminum, stone, MDF, Balsa, wood, fabric, plastic, PCB, paper, bamboo, horn, leather, sponge paper, etc.Not engravable: copper materials, aluminum materials. Cutting materials -- Cutting plywood, cutting black acrylic board, leather, paper, etc. Focus -- Come with a red piece help to alignment the engraving distance between laser module and carving objects. Beam Shape: Dot, Using red focuse ausiliary pieces to adjust focuse distance. Item Size: 1124040mm/22.214.171.124. 1 Red Focus Auxiliary Accessory. 1 Bag of Installation Accessories. The item "40w Laser Head Engraving Module Kit For Cnc Laser Engraving Cutting Machine" is in sale since Saturday, March 13, 2021. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Lamps, Bulbs & Laser Components\Laser Modules & Heads". The seller is "ilsal-64" and is located in Multiple Locations. This item can be shipped worldwide.