3050 SPEC :
6.0V only
Dimension 40.0 mm x 20.0 mm x 38.1 mm
Weight 48.8 g
Operating Speed 0.16 sec/60°
Output torque 6.5 kg-cm
3305 SPEC :
Metal gears, 4.8V or 6.0V only
Dimension 40.0 mm x 20.0 mm x 38.1 mm
Weight 46.5 g
Operating Speed 0.2 sec/60°6.0V)
Output torque 8.9 kg-cm(6.0V)