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1pc: $130
2-4pcs $115
5pcs+ $108

The ball drive, or planetary reduction drive, allows the user to obtain finer tuning control with silky-smooth reduction, so that the driven bore rotates one time for every 25 rotations of the fine input knob and one time for every 5 rotations of the coarse input knob.

FINE RATIO: 25:1, Reduction

COARSE RATIO: 5:1, Reduction


Constant input/output relative position?: NO