This is a double ended spanner T-Type Hex key screwdriver wrench 3.0mm.
Features:
This T-type hex key driver tool works with all types of CNC machines, 3D printers, skateboards, long boards, bicycles.
Specification:
Material: Steel
Color: cyan
Available in multiple sizes: 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm
Sold by the unit.