3” Screw-Holding Screwdriver for slotted or combination head screws. Used on screw sizes #4 up to 1/4”. 3” holder is perfect for congested areas. Operation: Simply insert the metal tips into the screw head and push the handle forward. The screw can then be started or removed and when finished simply press the release rod to reset the driver. For starting or removing. Not for Torquing!