Used to get my alu bits from Capral in Wetherill park but found this mob called Action Aluminium this morning from a friend machinist. Est. in 2010 so fairly recently. They're in 87 Victoria Road in Smithfield. Website is
here. Got a 220x91x12.7 plate for $11.40. Couple of years ago Capral charged me nearly 10x more for something 3x longer.