The quick change screwdriver is the ultimate multi-bit tool. Simply insert any standard bit into the socket or use as a 1/4 in nutdriver. To switch to a different bit, pull back the gold knurled collar, remove the bit and snap in another. The tail-end features the E-Z Spin™ high torque rotating flip cap with built in bit storage that holds up to 5 extra insert bits. This tool is as durable as it is useful. The driver blade has been coated in black oxide for superior corrosion resistance and heat treated for optimum strength. Include this in your tool box as the most versatile screwdriver you will ever need!