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Attach the Brunton 3040 non-magnetic Ball & Socket mount to any pocket transit and tripod or monopod for extremely accurate azimuth and inclination reading.

Adjustable needle locking mechanism with two positions: Unlocked – releases the needle for azimuth readings. Locked – momentary release of the needle for strike measurements by pressing and holding the release mechanism, then lock the needle for reading by releasing the mechanism.


  • Aluminum & brass construction
  • Standard 1/4 – 20 thread
  • Fits Brunton transits exclusively