Wera 870/4 05311517001 Connector piece Drive (screwdriver) 1/4 (6.3 mm) Downforce 1/4 (6.3 mm) 50 mm 1 pc(s)

Application: hand-operated socket wrench insertsoutput: 1/4-outer squaredrive: 1/4-cap

Price: £ 12.99 from Conrad Electronic