This Milwaukee Hex Key set includes 9 Hex Keys in sizes 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10mm. The ball head design allows for easy access to screws and enables working at an angle of up to 30°. Each key is clearly size-identified for quick selection. The set features holes for easy attachment to Milwaukee tools for safety when working at height. It also includes a twist lock for easy key removal.