F1 can do better - Watchtower Firearms F-1 Safety Selector Kit

The product itself is great, but when F1 charges $60 for a safety selector, I expect them to include directions or at the very least an Allen wrench so that I can actually install their product! The Allen wrench required is so small that I do not own one and will have to make an extra trip to the hardware store to figure out what size I need.