Features and Benefits:

• Forged from the finest chrome-molybdenum alloy steel, the best choice for strength
• Radius corner design extends the life of fasteners, design drives the side of the fastener instead of the corner
• Design also avoids rounding of rusted or damaged fasteners
• Black oxide finish and has etchings for identification
• Steel ball retainer on male end securely holds sockets and extensions

This is an impact extension. It is 5 in. and 1/2 in. drive. Wobble drive provides 15? offset in all directions.