RDA zenith V2 question

[mastatom85]

Hey I just got a new zenith; but i already lost the small allen key does anyone know what size key i would need to replace it?

 

[porkchopbun]

around 1.5 mm for v2, I bought cheap hex set screw driver set like this one
http://www.amazon.com/Sale-Precision-Multi-Magnetic-Bit-Screwdriver-Electronics/dp/B00KTKYO7Q

they are only few dollars more at Home Depot or same price probably at Harbor Freight