High-precision 6.35mm convex and concave glass lens devised specifically for optimal machine collimation and focusing across various applications. Compatible with a wide range of machine light sources (405-1100nm), making it perfect for cutting machines, marking tools, and smart home devices. Crafted from durable D-ZK2N material, ensuring excellent optical performance and longevity for demanding tasks. Customizable options available to meet specific material requirements, providing tailored solutions for your needs. assurance guaranteed through rigorous manufacturing processes, with support for picture and sample processing customization as needed.