Fatures: 
Quality: high density material with good durability and high impact resistance, easy to use.
Adjustable: 1/2-inch square or 1/4-inch hex quick adaptor, can be used with power tools.
Innovation: extended shaft for easy replacement of bit and sleeve, sturdy clamp for easy use.
Advantages: One-handed replacement during operation; the adapter securely holds any 6.35 mm (1/4-inch) hex handle.
Application: Converts the air or power impact wrench into a drill or ratchet wrench.

*Does not fit standard length screwdriver bits*