Am I asking for trouble with this? (manual milling?)

[Tenson]

What hole cutter would go thorugh 15mm alu plate Jazz? The ones I have in my kit are clearly designed for wood and will no doubt blunt very quickly on a job like this.

[JAZZCNC]

What hole cutter would go thorugh 15mm alu plate Jazz? The ones I have in my kit are clearly designed for wood and will no doubt blunt very quickly on a job like this.

This set is what I use but You can buy them individually at B&Q.
Bosch 13 Piece Progressor Holesaw Set : Tooled-Up.com

[JAZZCNC]

Oh forgot to say while these Hole cutters can be used in hand held drill they really need to be used in a drill press for hard materials like Ali or steel because the torque forces are high and will rip hand drill out your hands in harder materials. They also need slow spindle speeds and most drills are too fast.!