Screwdrivers come in many different handle, shaft, and tip configurations for use in a wide variety of applications. Screwdrivers are classified by their tip which is shaped to fit a corresponding screw head. Common tips are slotted (flat) and Phillips (x-shaped).
Which type of screwdriver has a straight slot in the top?
phillips  | 
|
nut driver  | 
|
slotted  | 
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hex  |