Micro Bit 4mm To 1/4" Hex Short Insert Bit Adapter, 1/4" Bit Socket To 4mm Hex Bit Mounting Adapter Match With 6.35mm Hex Handle - Screwdriver - AliExpress
Milwaukee SHOCKWAVE™ Power Bit Socket Adapter 1/4" Hex to 3/8" Square 48325031 | Milwaukee Tool NZ