Jacobs 1/2" Keyless Drill Chuck is a professional-grade tool that provides secure and easy bit changes. Made of durable alloy, it has a weight of 0.73 lb and dimensions of 7.85" in length, 2" in height, and 4.05" in width. The keyless design allows for quick and effortless bit changes, saving time and effort. The Jacobs Chuck Manufacturing Company is a global leader in the design and manufacture of precision tool and work holding devices, ensuring the highest quality and performance.