Fig. 2From: Development and validation of a drill attachment for faster and safer deployments of fin-mounted geolocators in large-bodied sharksGear box. Technical drawings of the A posterior and B anterior halves of the gear box. “A ” designates the sectional plane of the cross sections that are shown on the right side of the figure. All measurements are in millimeters. 18H7, 32h6 and 8H7 represent tolerance levels of the components. Technical drawings of the gear box halves with the bronze bearings can be found in the Additional file 1Back to article page