The men, both aged between 50 and 60, had been with four other divers when they entered the water on Saturday, diving correctly in pairs.
Two of the group surfaced without problems, while another pair made an emergency ascent and were taken to hospital for treatment.
The third pair remained missing, sparking a rescue - and then recovery - operation. Divers found their bodies on Sunday around 50 metres deep.
Hemmoor is around 60 metres deep and popular among divers for its clear water, good visibility and the remains of a chalk mining industrial facility which is largely intact on the bottom, as well as a plane which was sunk there to provide more interest for divers.
Police said that ten divers have died in the lake since 2000.