Thumler's Tumbler A-R12 Tumbler | TT-AR12 LED The FF107 APO adopts a

The FF107 APO adopts a 3+1 quadruplet lens structure which contains two pieces of ED glass that can effectively reduce chromatic aberration and enhance clarity and sharpness

Glass Thickness 2

Accuracy Improvement: Periodic Error has been worked to be within ± 10 arc seconds – half that of the old version

The 65PHQ contains a multifunctional handle

With a 30mm apochromatic lens design that includes ED glass(Extra-low Dispersion)

Thumler's Tumbler A-R12 Tumbler | TT-AR12 LED The FF107 APO adopts aThumler's A R Series of tumblers. Deluxe, large 12 lb. capacity hexagon rubber barrel. Quiet, efficient operation. Well suited for the serious rock hobbyist or for the sportsman as a case polisher for handloaded ammunition. Overload protection, continuous duty, fan cooled motor. Spare Parts Available Here