What can these bits work on?
Picture not really clear, but I will take a shot. From left to right:


socket adapter
looks like torx bit - specialty (newer version of Phillips)
looks like torx bit - specialty
looks like torx bit - specialty
#2 Pozidriv - deck screws
#1 Pozidriv - smaller screws (curtain rods, cabinets) 
#2 Phillips - Most common
#1 Phillips - Most common
#2 slotted - most common
#1 slotted - smaller slotted screws