General description Sealey Premier Impact Universal Joint 3/8"Sq Drive is a robust tool designed for use with all types of air impact tools. It is part of a comprehensive range of Premier Hand Tools, suitable for daily professional use. Technical specifications Material: Chrome Molybdenum steel Finish: Phosphate for added corrosion resistance Model No.: AK5497 Type: Drop-forged steel universal joint Other information Lifetime guarantee* Features a spring-ball socket retainer and drilled head to accept retaining pin