If you are looking for a ball end hex key set that comes with an extensive range of bits, the Bondus 13199 9 Piece Metric/SAE T-Shape Hex Key Set is your best choice. This kit contains both metric and SAE hex keys, so it’s suitable for use on all types of applications. The hex keys are made from steel and come in black oxide finish. Their plastic handles provide better grip, especially in wet conditions. These tools have t-shaped handles that allow you to work more efficiently. Whether you are a professional or hobbyist, the Bondus 13199 9 Piece Metric/SAE T-Shape Hex Key Set is exactly what you need to tackle various fasteners around the house or office.