These metallic mirrors with BK7 glass substrates are ideal for applications requiring high precision and durability, such as in laser systems and scientific instrumentation. They feature a variety of reflective coatings including protected aluminum, silver, and gold, with surface qualities of 60-40 scratch-dig and flatness up to lambda/4. Suppliers like Sherlan Optics and Union Optic offer a range of shapes and customizations to meet specific project needs. On FindLight, buyers can compare detailed specifications, request pricing, and connect directly with manufacturers without needing to register.