The EKLIND 16504 Metric Plain Hex Key is the tool you need to tighten or loosen fasteners. It is made of alloy steel, making it sturdy and durable. This hex key has a plain handle that gives you a firm grip when working with it. The arm length measures 2 in., while the blade tip size is 2 mm. The alloy steel construction ensures this hex key will last for years to come. A chrome finish helps protect against rust and corrosion, giving this hex key an attractive appearance as well as durability. The EKLIND Hex Key is ideal for loosening or tightening fasteners of different sizes with ease.