THIS PAGE STILL NEEDS A LOT OF WORK
Mill:
Can be used to create pockets or slots with an endmill
Can be used to create holes using a drill bit
Can face a surface to make it flat or a certain width using a fly cutter or a large endmill
Can be used to tap - however is not recommended unless you know what you're doing and it is necessary.
Can counter-sink holes
Can find the center of a hole or an edge
Drill Press:
Mostly used to make holes quickly with a drill bit
The idea here is that it makes much less time to set up than a mill and you can achieve a very similar level of accuracy.
Lathe:
Used for machining circular parts
Can help put holes in hex shafts
Can be used to create a place for a snap ring to fit around a hex shaft
Horizontal Bandsaw:
Used to cut stock that has thick walls or solid stock
Cold saw is too fast to go through that much material
Vertical Bandsaw:
Used for making roughly cut parts fairly quickly
Used primarily on sheet metal or less robust material
Can be used to also make
Cold Saw:
Used to cut lengths of tube, hex, L, C, etc very quickly
Don't use on solid stock or anything with > 1/4" thickness
Sander:
Can be used to take small amounts of material off from an improperly cut tube
Can be used to deburr external edges on parts such as waterjet parts or the ends of tube.