Beam Steering Assemblies are specifically suited for numerous applications in laser holography, interferometry and other exacting set-ups and systems requiring precise redirection of an optical beam. The 12.7mm Beam Steering Assembly comprises a slotted base, suitable for attachment to metric and imperial bench plates, a main 300mm post and two 100 TPI kinematic mounts with 6° tilt range, suitable for 1" or 25mm diameter optics. The kinematic mounts can be moved vertically and can also be rotated 360° around the main post. The 20mm Beam Steering Assembly is designed for applications that require a higher level of stability and feature a larger slotted base than its 12.7mm counterpart; it includes a 20mm main post and heavy duty cross clamps. Mirrors are held in place with an #8 set screw.