Item No.: H11F565
• Drop Forged, Heat Treated Chrome Vanadium Steel
• Corrosion-Resistant Black Oxide Finish
• Spring-Loaded Ball Bearing Locks onto Sockets
• 7-pc. Adaptor & U-joint Set : 1/4''F to 3/8''M, 3/8''F to 1/4''M, 3/8''F to 1/2''M, 1/2''F to 3/8''M. U-joint sizes: 1/4, 3/8, and 1/2''.