The AW Toolsis a 150mm extension bar designed with a quick release 1/4" bit holder for enhanced convenience and efficiency. Its 1/4" hexagon shank ensures easy fitting into chucks, quick release adaptors, or drills, making it ideal for use in hard-to-reach locations or for achieving extended hole depths. Brand: AW Tools Length: 150mm Shank Size: 6mm (1/4") Quick Release Adaptor for rapid bit changes Hexagon shank allows for easy fitting into chucks or drills Ideal for use with flat bits in hard-to-reach locations or for extended hole depths