Check the listing for details. 4pcs Impact Socket Adapter 3/8" Square Drive 1/4" Shank 6" Long Extension Bit. Condition: New. Listed at 20.17 USD. Specifications:Square Drive Size: 3/8" Standard Hex Shank: 1/4"Total Length: 150mm / 6"Material: CR-V Steel (Chrome Vanadium Steel)Finish: SandblastedPackage Content: 4pcs x Impact Socket AdapterDescriptions:The square drive socket adapter is made of CR-V steel, which offers high strength, toughness, durability, and corrosion resistance for long-term use. The sandblasted surface provides better corrosion resistance, enhanced grip, and a clean, smooth surface for increased durability. 1/4" hex shank socket adapter provides a secure, locking extension to your existing tools. Provides extra length to get into hard-to-reach spaces. Anti-drop spring ball lock ensures a precise and tight fit with the drive head to prevent slipping during use.