Draper Elora Bi-Hexagon Socket, 1.3/4″ 3/4″ Sq. Chamfered end allows positive nut location and entry. Hole for driving accessory with locking pin. Sold loose. Manufactured to DIN 3124/ISO 2725 and DIN 3120/ISO 1174 Specifications1 x Elora Bi-Hexagon Socket, 1.3/4″ 3/4″ Sq.