Engraving Module,Head Speed Cutter 3d Paper Diy Wood 3d Printer Fabric 20w 450nm 20w With Cover Speed Cutter 20w Head Craft Wood Leather Printer Router Diy Craft Wood 20w Cover Adjustable

With adjustable focal length (5.5W/ 10W/ 20W, 20-70mm) or fixed focal length (30W, 12.6mm/ 40W, 15mm/ 40W, 40mm/ 80W,40mm). Made of premium quality aluminum alloy casing with great durability. Compact and lightweight, easy to assemble, has over 30cm long line. Comes with screws, convenient and simple to be installed on the machine. It can engrave paper, wood, fabric, plastic, leather, anodized aluminum, etc. Different laser modules for engraving/ cutting different kinds of material and different thicknesses. Wide application, it's designed for laser engraver, laser cutting machine, 3D printer, CNC mill and so on, suitable for DIY lover, CNC engineer, artist and more Upgraded version: Equipped with adjustable protective cover to protect your eyes, no need to wear extra laser glasses while working, safer to use than ordinary laser head.