Screwdrivers are a type of hand tool used for the insertion and removal of screws. They are available in a multitude of variations to correspond to the correct screw drive. The drive or head of a screw has a shaped cavity and protrusion that fits the screwdriver tip.

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The tool used to drive a slotted screw head is called a standard, common blade, flat-blade, slot-head, straight, flat, flat-tip, or "flat-head" screwdriver. This last usage can be confusing, because the term flat-head also describes a screw with a flat top, designed to install in a countersunk hole.

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The screwdriver shank is made of tough steel, and the tip is hardened to minimize wear. The handle is made of wood, metal, or plastic. If a screw cannot be reached with a straight-shank screwdriver, an offset screwdriver is used; this tool has no handle but has a shank with a right-angle bend at both ends.

hex screwdriver The hex socket screw drive has a hexagonal recess and may be driven by a hex wrench, also known as an Allen wrench, Allen key, hex key, or inbus as well as by a hex screwdriver (also known as a hex driver) or bit.

Phillips Screwdriver It's the most common screw head in the U.S.. Sizes range from tiny to enormous. The most common sizes are #1, #2 and #3. If you don't already own a Phillips screwdriver, the size you're most likely to need is #2.

But very very very difficult to get into recessed. Or came to some situations. Where you might have a screw that's buried or sunk in so it's quite difficult to use a flared screwdriver.

The screwdriver shank is made of tough steel, and the tip is hardened to minimize wear. The handle is made of wood, metal, or plastic. If a screw cannot be reached with a straight-shank screwdriver, an offset screwdriver is used; this tool has no handle but has a shank with a right-angle bend at both ends.

A screwdriver is a tool that is used for turning screws. It consists of a metal rod with a flat or cross-shaped end that fits into the top of the screw. Collins COBUILD Advanced Learner's Dictionary.

Torx screwdrivers have a tip of six rounded points resembling a star to fit into the screws or nuts and to tolerate increased torque. The design ensures the screw head is less likely to be stripped. These screwdrivers are commonly used in automotive applications like wheel locks and consumer electronics.

Hex Screwdriver The six-sided shape of the hexagon reduces the chance of slipping, allowing hex fasteners to be driven at high speeds by electric-power hex screwdrivers or drills without the screwdriver head stripping the screw notch.