How to identify footprint dimensions from datasheet to create my own footprint using KiCad
Just to expand upon Andy's answer, your drill size should be a bit wider than the maximum dimension marked in red. To be more precise, it should be wider than the diagonal formed by the maximum dimension marked in red (1.1mm) and the maximum dimension on the right-hand diagram showing the depth of the pin (0.8mm). The maximum lead diameter is determined by $$\sqrt{1.1^{2}+0.8^{2}}=1.36mm$$ 

According to IPC-2222, Level A requires the minimum hole size to be the maximum lead diameter + 0.25mm, so your minimum drill size should be $$1.36mm+0.25mm=1.61mm$$

Levels B and C (tighter fabrication tolerances) add 0.20mm and 0.15mm to the maximum lead diameter, respectively (instead of 0.25mm). Level A is usually your safest bet because it pretty much guarantees that any fab house can handle it.

As for the pitch, the datasheet shows a maximum and a minimum, and you can generally assume that the nominal measurement is right between the two. With a range of 7.3mm minimum to 7.7mm maximum, it is easy to see that the nominal is 7.5mm, with a +/- 2mm tolerance.

Finally, for the pad size, I generally try to make my pads about twice the diameter of the drill size. If the minimum drill diameter is 1.61mm, then your minimum pad diameter should be 3.22mm.