Quality: High-density material with good durability and high impact resistance, easy to use. Adjustable: 1/2" square or 1/4" hex quick-load adapter and can be used with power tools. Innovation: Extended shank for easy bit and sleeve replacement, stable clamping for easy use. Advantages: One-handed exchange is allowed during operation, and the adapter firmly holds any 1/4" hex handle. How to use: Converts air or power impact wrench into a drill or ratchet in the motor.