what bits/ endmills for 2.2kw spindle for aluminium

[JAZZCNC]

I use Apt 2 flute and am very happy with them but you must get the ones for aluminium as they are uncoated, coated ones will gum up cutting aluminium.

Not exactly correct.!!
I pretty much exclusively cut aluminum and quite aggressively using Carbide cutters with DLC coatings, they never gum up. The most common cause of gumming cutters is people using the wrong cutting parameters, even soft shitty aluminum like 1050 doesn't gum up if using correct parameters.

To the OP, I suggest you buy cheap cutters to start with as you will most likely snap plenty while learning. Then when you have gained some experience look to buy better quilty as they will last much longer and provide better finishes.

I'll warn you now cutting aluminum, or anything for that matter is all about getting the cutting parameters correct, but especially so with aluminum as many other variables come into play and it's much less forgiving than say wood or plastics. Machine strength, Material grade, cutter length, # of flutes and spindle power, coolant/Air, etc all play a big part in what happens.

Aluminum can be very unpredictable with hard and soft spots so your cutting parameters need to be spot on and the machine strong enough with spare spindle power to handle the fluctuating material.