The RAM Drill-Down Double Ball Mount for Humminbird allows for nearly infinite adjustability with a rubber ball and socket technology. The rectangular plate contains a 4-hole pattern of 1.5 x 4.5 inches while the round place contains two mounting holes at 180º and three mounting holes at 120º. Complete with a universal AMPS hole pattern, this RAM double ball mount will easily attach to the back of your Humminbird Helix 8, 9, and 10.
- Double socket arm
- Universal AMPS hole pattern
- Two mounting holes at 180º and three at 120º
- Rubber ball and socket technology dampens shock and vibration
- Compatible: Humminbird Helix 8, 9 & 10 models.