Directions. Write True if the underlined word is correct, if it is False change the underlined word to make the statement correct. 1. Pencils cannot be used inside the computer to adjust the settings of the switches or to delete the Jumpers. 2. Needle-nose pliers and hex driver may be used to position and retrieve pieces that may be difficult to reach with your fingertips. 3. Hex driver is used to loosen and tighten the bolts with a hexagonal (six-sided) head. 4. Flat-head screwdriver are used to remove a crosshead screw. 5. Never use a screwdriver as a pry bar.