This EKLIND 19205 SAE Plain Double-Ball-Hex Key is a durable tool that will help you to tighten and loosen hex bolts and nuts. The black oxide finish protects the alloy steel blade from corrosion. It has a plain handle made of alloy steel, with an arm length of 3 29/32 in. The double ball hex shape makes it easy to apply torque in tight spaces. You can rely on this EKLIND 19205 SAE Plain Double-Ball Hex Key to help you tackle your next project.