Suitable for professional contractors and hobbyists, this tool is designed to simplify work and increase productivity with a one-handed operation Our bit holders feature 45# steel construction to ensure longevity and consistency for all projects This screw depth attachment not only streamlines your workflow, but also increases the level of construction projects and adds to your tool kit Adjustable depth stops of our Quick Change bit holder allow you to control screw penetration and protect tools from damage and ensure a reliable finish every time Whether you're rebuilding, wood assembling, or installing, our bit holders are the perfect tool for efficient drilling jobs, Manufacturer: Pffiocix