This Jacobs Chuck 34-33, with a key for ease of use, is perfect for your drilling needs. 0-1/2 inches , 0-13mm, making it versatile for a variety of projects. The 33 taper ensures a secure fit, giving you peace of mind while working. Made by trusted brand Jacobs, this drill chuck is sure to last. Ideal for both personal and business use, this tool is a must-have for any toolbox.