The CENTURY DRILL AND TOOL 68107 Quick Change Screw Driving Bit, 7 Pc Set is a convenient and versatile set of screw driving bits designed for easy bit changes during your tasks. With a length of 5.5 inches and a width of 3.75 inches, these impact-rated bits are suitable for both SAE and metric screws. The set includes 7 different sizes to cover a variety of screw sizes, making it a reliable choice for any home or workshop project. Additionally, the quick change feature allows for quick and efficient bit changes, saving you time and effort on the job.