STAHLWILLE Adapter 409 drive 1/4 inch drive 3/8 inch length 25 mm

6.3 mm (1/4) square drive
– For socket bits used with hand tools
– With ball lock
– HPQ® high-performance steel 6.3 mm (1/4) internal square to 10 mm (3/8) external square Further technical information:
– Length: 25mm
– Standard: DIN 3123, ISO 3316
– Model: 409