General description These CSPARKV 3 adapters are designed for use with 1/2", 3/8", and 1/4" sockets, making them compatible with drills, cordless, and manual screwdrivers that have a hexagonal shank. The set includes three adapters: one 12.5 mm, one 10 mm, and one 6.35 mm, providing versatility for various tasks. Technical specifications Adapter sizes: 12.5 mm, 10 mm, 6.35 mm Drive size: 6 mm (1/4") Length: 50 mm Made in: China