Keelerak were one of the six breeds of Visorak that invaded Metru Nui. The ends of a Keelerak's legs were razor sharp. They were know to leap high in the air and whirl at high speed, becoming Visorak buzzsaws. They Rhotuka spinners had an acid venom which could melt any substance.
Keelerak were the most unpredictable of all six Visorak breeds. They would fight fiercely one moment, then disappear to go hunt the next. Their spinners contained an acidic venom that could eat through any substance. The ends of their legs were razor-sharp, and they were known to leap into the air and whirl at high speed like flying buzz-saws.