A web site with 3-5 pages. Main page where folks will click what they want to do next.
A page where they will be able to reserve a special tool, along with a calendar showing dates that are available to reserve tool.
Multiple user names and passwords for each shop to log on with
List of tools to be reserved (9 tools), view availability of tool and current location
"My Account" to be able to change passwords and shop information
Cancel reservation option.
Maybe an email that goes out to everyone on the list, that a tool has just been reserved? At least an email to the person who currently has the tool, that someone is next in line to get it.