Eyeglass Screwdriver/Nutdriver by Anex (Japan)
This pencil type precision screwdriver/nut driver for glasses fits all 4 different types of screws found on eyeglasses:
1 - Slotted Screwdriver (1.8mm)
2 - Phillips Screwdriver (00)
3 - Hex Nut Driver (2.2mm)
4 - Star Hex Nut Driver (2.5mm)