Proto Extension Socket Adapter, Measurement System: Imperial, Hex x Male Square Drive, 7/16 x 1/2 in Male Drive, 2-3/4 in Overall Length, Male x Male Adapter, ANSI B107.1, Federal GGG-W-641E, Forged Steel, Black Oxide

ITEM FEATURES:

• Size stamped on tool for easy identification
• Ball detent design
• Not for use on impact applications
• 1-piece construction ensures concentricity
• Special heat treat ensures long life
• Precision machined tips for proper fastener engagement