T5x40 torx screwdriver (provided)
no. 3 hex-head key (metric; provided)
hex-head wrench no. 8
Depending on the Kit setup you'll be provided with either 1x6 goldpin plugs or 2x6 goldpin. In case of 2x6 connect mating pair of wheels into one plug.
Find the proper wheel name on Core2ROS driver to connect. The connectors are located in left bottom of the image below.
Wheel name on board