Finding The Right Screwdriver

If you recently bought a new computer and you've tried taken the case off to install a new card, you may have come across screws that you could not find a screwdriver for. Some manufacturers seem to take delight in bewildering their customers by using Torx screws that have six shallow flanges, unlike the four on traditional Phillips screws. If you need to open the case, you have to buy a Torx T-9 screwdriver, which is available at most hardware stores.