With the EKLIND 19712 Metric Plain Ball Hex Key, you can easily access and tighten fasteners in hard-to-reach places. The hex key has a tip size of 6 mm and is 7 in long. Its alloy steel blade is resistant to rust and corrosion. It also has a plain handle with an alloy steel handle that provides durability. Made of durable materials, this hex key will provide you with years of service.