Weidmueller SD EL SET 1.5-4.0/PH0/1

"SD EL SET 1.5-4.0/PH0/1" likely describes a set of tools, probably screwdrivers. "SD" is likely the brand, "EL SET" indicates an electrician's set or a set designed for electrical work, and "1.5-4.0/PH0/1" specifies the sizes and types included. "1.5-4.0" probably refers to slotted screwdriver sizes ranging from 1.5 to 4.0 (likely millimeters), and "PH0/1" likely indicates Phillips head sizes 0 and 1. To confirm the exact contents and specifications, it's recommended to search online, check the SD brand's website, or consult relevant catalogs or suppliers.