AmScope FR-A1-B Stereo Microscope Focus Block with 76 mm Collar

Amscope, FR-A1-B, Stereo Microscope Focus Block with 76 mm Collar 32 mm Tube Mount Lamp Slot in Black

Features:

• Focus rack for SM, SW and ZM series stereo microscopes and other major brand named stereo microscopes
• Brand focus rack with ball bearing
• Focus gear with coarse focus and tension adjustment
• Brand focus rack with ball bearing
• Focus gear with coarse focus and tension adjustment
• Manufactured under ISO 9001 Quality Control Standard

This is a focus rack for major brand stereo microscopes like Olympus, Nikon, Zeiss, Leica, etc. It comes with ball bearing and 3" (76mm) diameter of annular ring that holds microscope head.