Stahlwille 410 11030003 Bit adapter Drive (screwdriver) 1/4 (6.3 mm) Downforce 1/2 (12.5 mm) 28 mm 1 pc(s)

Transition Part 1/4" to 1/2" (6.3 x 12.5), made from hpq ® high-performance steel.

Price: 18.99 from Conrad Electronic