Star Drive Bits - TROML - 1534
A lot of manufacturers use screws with hexagonal 'slots' in the top to make their devices 'tamperproof'. I have a set of various bits that allow me to laugh at their efforts.
Known in the trade as Star Drive Bits, they don't get used very often but when you need one, there is no substitute.
For Macro Monday subject Stars
#36 Stars for 52 in 2016 Challenge