lathe cutting tools choice...

[TomG]

For cost and versatility, HSS would be my first choice for aluminum, but even if you buy ready made tool bits, you'll still need to sharpen them. Tool bits that small aren't going to create much noise or dust or noise, so you may want to reconsider your options. A back-up plan would be carbide inserts, but they and the tooling to hold them can get quite expensive. If you go that route, be sure to choose insert grades specifically designed for aluminum.

Tom