These mirror mounts are designed for use in vacuum systems with a conflat CF 2.75 flange and can accept 1.0" OD optics of with a variety of thicknesses (0.07" - 0.50") with or without a small wedge (< 2°). The optic is held in place with a non-marring Viton seal on a knurled aluminum knob for easy optic removal and replacement. These mounts may be heated and baked out up to 150 °C. Mounting screws are included for connections to both tapped and through-hole conflat flanges.