Jaegers 6" f/10 "GJD" OTA Construction - GSO 2" Crayford Focuser (Rear)
 

GSO 2" Crayford Focuser for the Jaeger 6" f/10 GJD Refractor - Rear - (Click to see an enlarged image.)

 
A look at the rear of the GSO 2" Crayford focuser reveals its adjustment screws. The top screw adjusts the amount of tension on the drawtube for racking, and the bottom aluminum screw locks the drawtube in its current position. The focuser is of all-metal construction and goes for a great price.