Wera 05042605001 780a adaptor for 1 4in and 5 16in hexagon insert bits wera 05042605001 this adaptor from wera has a 1 4in female square drive and is is suitable for 1 4in and 5 16in hexagon insert bits wera 05 042605 001 780a adaptor for 1 4in and 5 16in hexagon insert bits