DTG3596 Features: * Extension * 0.38" Extension * Ball locking device * According to DIN 3123 and ISO 3316 * Ideal for hand operated sockets and accessories with square drive as per DIN 3120, ISO 1174 * Packing unit: 5 Piece * For use in industry and aerospace * Drive connector square (male) size: 0.37" * Drive connector square (male) nominal size: 0.4" Color/Finish: * Finish: Polished chrome Specifications: * Material: 31CrV3 Vanadium steel