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.
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: