The 2-axis 1-inch rotational optical holder with 5 milliradians accuracy is a precision tool designed for adjusting and stabilizing optical elements in experiments and optical systems. With an optic diameter of 25.4 mm and a minimum optic size of 5.0 mm, this holder accommodates a wide range of optical components. The optical axis height of 27.5 mm and angular adjustment capability of ±5 degrees ensure high precision in angular positioning. It features three hex socket adjusters with M6 -- 0.5 threads, providing fine and stable adjustments. The clear aperture of Ø25.4 mm and M4 & M6 tapped holes make this holder an ideal choice for advanced optical systems, offering both flexibility and reliability in optical setups.