Drillfish Sub (Qiji 3704)

About this set

This is the KEEPPLEY Octonauts Drill Fish Submarine, set 3704, with 275 parts listed on the box and a 2/5 difficulty rating. The finished model is mostly yellow and orange with black and blue accents, and it reads clearly as an underwater vehicle. The build includes a transparent cockpit canopy, a tracked chassis, bottom skids, a front drill, a propeller, dive-chamber accessories, and a minifigure. The adventure, rescue, and protect theme comes through in the drill and dive-chamber parts rather than in printed graphics. The clutch is straightforward for a set at this level. Start with the tracked chassis and skids to set the base, then attach the front drill and propeller, and finish by snapping on the canopy and seating the figure; following that order keeps rework low. It suits young Octonauts fans building with a parent, and also works as a small display piece for collectors who like compact scene vehicles.