Drill Gearbox Gear Size?

From what I’ve read, the drill pinion is a 0.7 module (which means it’s metric?). Does anyone have any information on the gears (suns, planets, rings) inside the gearbox? Is it a safe assumption that they are 0.7 module also?

It looks like the first 2 stages are 0.7 mod, I get the mating gears for it from PIC-Design.com. We only used the motor pinion on our gearbox last year.