1.25" Double Helical Focuser+SCT Adapter

1.25" Double Helical Focuser High Precision 1.25 inch with M31X0.5 Female Thread to SCT Male Thread Adapter for Telescope Lens Finder Guidescope

The high precision double helical focuser;0.05mm Accuracy;10mm Focusing stroke;Make your focus more precise
Still more possibilities;With it you can convert a male M31 thread to a male SCT thread with minimum possible mechanical length
All metal construction; Double Helical Focuser is a very high quality anodized aluminum adapter; All metal construction and anodizing aluminium process; durable for long time use
Superb craftsmanship; Double Helical Focuser’s rotating mechanism allows very smooth and continuous focusing
With a brass compression insh to prevent the marring of your telescope accessories;Black tube flocking matt inside; All metal fixing screws

Specifications:

• • Interface: 1.25 inch with M42*0.75 male thread
  • primary Mirror Interfaces: M31X0.5
  • Accuracy :0.05mm
  • Focusing stroke: 10mm
  • This aluminum adapter ring has SCT male Threads on one side and M31 Female threads on the other side. With it you can convert a male M31 thread to a male SCT thread with minimum possible mechanical length.
    
    

Features:

• M31*0.5 female thread to SCT Male (2"-24 TPI) thread adapter
• Converts an M31 male thread to a SCT male thread
• Thread Interfaces: M31*0.5 / SCT
• Height: 8mm