This WIHA TOOLS 33486 SAE Plain Hex Key is the perfect tool for tightening or loosening fasteners. The hex key has a long arm, which provides more leverage when working with larger bolts and nuts. Made of CRM-72 steel, this hex key features a black oxide finish that protects against corrosion. This 7 in. hex key has a 5/16″ tip size and an overall length of 5 57/64 in. It also has a plain handle made of plastic with red color on the handle’s grip area. WIHA TOOLS 33486 SAE Plain Hex Key is ideal for professionals who need to work with hex keys frequently on the job site.