Allen Keys - Set of 3Allen Keys - Set of 3
These are genuine "Allen" keys, manufactured in the USA.

They are the 3 most popular sizes for Walkera, and most other electric RC helicopters.

They are long reach, so much easier to access those diificult-to-reach grub screws!

They are approximately 9cm long.

Set of 3 Allen Keys

1.5mm

2.0mm

2.5mm