This is a high-quality internal hex key set, made of premium alloy, offering high torque, high hardness, and excellent durability. Different sizes are displayed in different colors, allowing for quick identification of specifications. Equipped with various model sizes, tool specifications of 1.5/2/2.5/3/4/5/6/8/10 mm, and two available lengths, you can choose according to your needs. You can try it. Features: Made of premium alloy, with high torque, high hardness, and excellent durability. Equipped with a colorful protective case, non-slip and wear-resistant, ensuring a long service life. Equipped with various model sizes, tool specifications of 1.5/2/2.5/3/4/5/6/8/10 mm, and two available lengths, you can choose according to your needs. Different sizes are displayed in different colors, allowing you to quickly identify the specifications. Uniquely formed using a 90° bending process, it offers dual functionality with a ball-shaped end and a flat end. The spherical end is designed for a small 25° angle. Wide range of applications and convenient maintenance. Features: Name: Inner Hexagon Set Material: Alloy Type: Short, Long (Optional) Model Size: 1.5/2/2.5/3/4/5/6/8/10 mm Item Weight: Short: 360 g / 12.70 oz Long: 430 g / 15.17 oz Package Size: Short: 180*60*30 mm / 7.09*2.36*1.18 in Long: 230*60*30 mm / 9.06*2.36*1.18 in Package Weight: Short: 370 g / 13.05 oz Long: 450 g / 15.87 oz Packing List: 1 * Inner Hexagon Set