I just signed up for my local TechShop, which means I now have access to a couple large communal milling machines. Even they have recommended using your own end mills rather than the ones they keep available. I know I need some four flute end mills for steel, some two flute end mills for aluminum and a larger roughing mill for taking off more material. I was going to go with HSS as I relearn this stuff--anyone have a recommended brand? I'm thinking I'd like to stay away from the Chinese imports.