Hazet 858-1 858-1 Bit adapter Drive (screwdriver) 1/4 (6.3 mm) Downforce 3/8 (10 mm) 26.5 mm 1 pc(s)

Square socket drive 6.3 = (1/4") outer square drive 10 = (3/8") · chrome vanadium · Surface: chrome-plated · DIN 3123, ISO 3316.

Price: 16.99 from Conrad Electronic