Screwdrivers

Screwdrivers are tools, manual or powered, used for turning screws. They have a handle and a shaft, ending in a tip that fits into the head of a screw. Screwdrivers come in different types and sizes, depending on the shape and size of the screw head. Some common types are slotted, Phillips, Torx, hex, and Robertson. Screwdrivers are used for various purposes, such as assembling furniture, repairing appliances, installing hardware, etc. Powered screwdrivers are faster and easier to use than manual ones, and can also drill holes. Some powered screwdrivers have features such as variable speed, reversible direction, torque clutch, etc.

• Flathead or slotted screwdriver: This type has a wedge-shaped flat tip that fits into the linear notch of a slotted screw. It comes in various sizes and lengths and can be used for various purposes, such as furniture assembly, automotive work, and electronics repair.
• Phillips screwdriver: This type has an X-shaped tip that fits into the X-shaped notch of a Phillips head screw. It also comes in various sizes and lengths and provides better grip and traction than a flathead screwdriver. It can be used for similar purposes as a flathead screwdriver, as well as for installing drywall.
• Torx screwdriver: This type has a star-shaped tip that fits into the star-shaped notch of a Torx head screw. It has six points and comes in different sizes, denoted by T-numbers. It provides more torque and less cam-out than a Phillips screwdriver. It can be used for automotive, computer, and security applications.
• Robertson or square screwdriver: This type has a square-shaped tip that fits into the square-shaped notch of a Robertson head screw. It has four sizes, denoted by colors: green, red, black, and yellow. It provides more torque and less cam-out than a Phillips screwdriver. It can be used for woodworking, decking, and cabinet installation.
• Pozidriv screwdriver: This type has a cross-shaped tip that fits into the cross-shaped notch of a Pozidriv head screw. It has four additional ribs between the main cross arms, which provide more grip and less cam-out than a Phillips screwdriver. It has eight sizes, denoted by P-numbers. It can be used for furniture assembly, electrical appliances, and automotive applications.
• Hex or Allen screwdriver: This type has a hexagonal tip that fits into the hexagonal notch of a hex head screw. It can also be called an Allen key or wrench because it has the same shape as an Allen key of the same size. It comes in various sizes, denoted by fractions or millimeters. It provides more torque and less cam-out than a Phillips screwdriver. It can be used for bicycle repair, furniture assembly, and machinery maintenance.

A one-way screwdriver is a tool that is designed to drive and remove one-way screws. One-way screws are screws that can be tightened with a standard screwdriver, but cannot be loosened with one. They have a slotted head that is asymmetric, meaning that the slot is deeper on one side than the other. This allows the screwdriver to grip the screw when turning clockwise, but slip off when turning counterclockwise. One-way screws are used for security purposes, such as installing window guards, security doors, license plates, etc

A one-way screwdriver has a specially shaped tip that can fit into the shallow side of the screw slot and apply enough torque to loosen the screw. It can also be used to tighten the screw more securely than a standard screwdriver. However, removing one-way screws is more difficult and requires more force and patience than normal screws. It is also recommended to pre-drill holes for best results. One-way screwdrivers come in different sizes to match the size of the screws, such as #6 - #8, #10 - #12, etc.

A mechanic's screwdriver is a tool that is designed for automotive and mechanical applications. It is similar to a standard screwdriver but has some features that make it more suitable for working on cars, engines, machines, etc. Some of these features are:

• A longer shaft that can reach deep or narrow spaces.
• A magnetic tip that can hold screws securely and prevent them from falling into hard-to-reach places.
• A hexagonal or square shaft that can be used with a wrench or a socket for extra torque.
• A cushioned or ergonomic handle that provides comfort and grip.
• A durable and corrosion-resistant material, such as chrome vanadium steel.