The gerber zip driver is a very clever clip on compact screwdriver that will let you quickly and easily tighten or loosen a screw on the go made from high quality materials the 2 phillips and 2 flat screwdrivers rotate and snap into place ready for action features always to hand attach to a bag zip or keyring easy to use one handed clip lets you unclip and get ready while holding something safe and secure ball detent mechanism holds your chosen tip steady so you dont slip strong and