We offer you a Precision Rotary Stage 7R129 with a micrometer screw. Fine motion range is 15° with resolution of 1 arcmin. For coarse adjustment release the fixing screw and turn the platform. The platform has mounting holes M6, M4. Precision rotary stage has an aperture M30x1 with clear aperture of 25 mm. Two retaining rings with 1 inch clear aperture are included. To close the platform's aperture you can thread in an insert platform (included) with a centered clearance hole and M6, M4 holes. Precision rotary stage can be fastened horizontally and vertically using M6 screws.