Each driver comes with 12 double-ended bits that are stored securely within the screwdriver’s handle.This precision screwdriver is designed specifically for those working with (and on) electronics, technology, security, jewelry, and any other repairs in a micro environment.The patented palm-saver cap not only saves your palm from blisters, but the smooth ball bearing inside allows for a fluid rotation of the end cap allowing you to seamlessly tighten and loosen screws with a single hand. The raised rubber grips on the collar provide even further control and comfort, maximizing speed and efficiency on any project you tackle!