- Comprehensive Set: This product includes 3 folding hex key sets, featuring a total of 25 sizes—9 SAE, 8 Metric, and 8 Star. You'll have the right tool for any job. - Versatile Applications: Perfect for a variety of tasks, these hex keys are ideal for assembling furniture, tuning bicycles, maintaining motorcycles, and making adjustments on vehicles and machinery. - Durable Construction: Crafted from premium chrome vanadium steel, these tools offer exceptional strength and durability. The black oxide finish provides enhanced rust resistance, ensuring long-lasting performance. - Comfortable Grip: The soft rubber inlays provide a secure and comfortable grip, allowing for easy handling during extended use. - Compact Design: The folding feature of the hex keys allows for easy storage and portability, making it convenient to carry in a toolbox or backpack. Whether you're a DIY enthusiast or a professional mechanic, this hex key set is a reliable solution for tightening or loosening screws across a wide range of applications.