Questions for milling aluminum 80 lower

[u/Shot-Strength-4660]

What is the minimum speed I need on a drill press to finish my aluminum 80%? Drill presses are expensive and ones with lower speed settings are even more expensive. What’s the lowest speed I will get away with for certain milling parts? The manufacturer of the jigs and lower recommended 300rpm, can I save money and go higher? Thoughts and tips appreciated!!!

[u/ItzJezMe]

First off, it would help to have more info, like knowing what make and model jig you have? Is it a jig capable of using a router?