Screwdrivers are hand tools specifically designed to insert and tighten, or to loosen and remove screws. A screwdriver comprises a head or tip, which engages with a screw, a mechanism to apply force by rotating the tip, and some way to position and support the screwdriver, the tip of which is shaped in to fit a particular type of screw.
a. Slotted Screwdriver– is used to drive or fasten negative slotted screws.
b. Phillips Screwdriver – used to drive or fasten positive slotted screws. It is a screwdriver that could take greater torque and could provide tighter fastenings.
c. Jeweler's Screwdriver Set – is a set of small screw drivers composed of slotted and Phillips screwdrivers.
