For aluminium, you really want polished drill bits and with lubrication.
Chip clearance is the critical thing for aluminium, so on a manual drill, lots of pecking to ensure chips are kept clear.
Speed wise, a quick run through a speeds and feeds calculator using a 10mm HSS drill, gives an optimum speed of 2718RPM.
However, that requires nearly a full HP, so I'd probably go for the second fastest speed, and go a bit slower, but make sure the drill always has pressure on it when cutting.
Chip clearance is the critical thing for aluminium, so on a manual drill, lots of pecking to ensure chips are kept clear.
Speed wise, a quick run through a speeds and feeds calculator using a 10mm HSS drill, gives an optimum speed of 2718RPM.
However, that requires nearly a full HP, so I'd probably go for the second fastest speed, and go a bit slower, but make sure the drill always has pressure on it when cutting.