Milwaukee Universal QUIK-LOK Extension a versatile and innovative solution for your tool needs. This 1/4 inch universal Quik-Lok™ extension is designed to fit all 1/4 inch shanks, whether they have a power-groove or not. Its unique design allows for quick and efficient bit changes without the need for any tools, making your work faster and more convenient. This extension combines practicality with ease of use, ensuring you get the job done smoothly every time. Model Number: 48-28-1020