Sealey Socket 23mm 1/2"Sq Drive Non Sparking WallDrive® NS056Manufactured from Beryllium Copper. Die forged. WallDrive socket configuration. NON SPARKING SAFETY TOOLS Part of the Sealey Premier Range of Non Sparking tools suitable for professional daily use. BERYLLIUM COPPER Manufactured from non sparking but physically tough and non magnetic copper meeting requirements of ATEX Directive for zones 0, 1 and 2. FOR USE IN ENVIRONMENTS OF RISK Beryllium copper is resistant to non oxidising acids making it