Rainbow Short Hex Wrench With No Ball

[Features]
This is a hex key without a ball.
The edges are lightly chamfered to allow the wrench to be easily inserted into the screw hole.
It has special powder coating that makes it rust resistant.
It has high hardness and toughness, and can apply high torque due to its excellent wear resistance and durability.
Each color can be visually identified by its size, making it easy to understand and use.