OCNRUX Stereo Microscope Head Holder Focus Adjustment Arm Microscope Ring Arbor Stand Bracket Diameter 76mm Accessories
FEATURES:
1. Brand new focus rack with ball bearing
2. Focus gear with coarse focus and tension adjustment
3. Diameter of annular ring holding microscope head: 3" (76mm)/1''(32mm)
4. Diameter of opening for stand post (arbor): 32mm
5. Focus distance stroke:50mm
Packaging includes:
1 x 32mm Microscope Focus Adjustment Arm