The Complete Guide to Screwdrivers - Different Types and Uses

Screwdrivers are handheld tools specifically designed for inserting and removing screws. They come in a wide range of variations to match different types of screw drives. The drive or head of a screw features a cavity and protrusion that perfectly align with the tip of a screwdriver. By applying a turning force called torque, screws can be tightened or loosened in either a clockwise or counter-clockwise direction.

The screwdriver is one of the most essential hand tools in any tool kit. There are many situations and professions where a screwdriver is integral to carrying out a specific task revolving around loosening or tightening fasteners.

Some of the most common uses of screwdrivers include:

• Electronics and electrical equipment
• Opening mobile phones
• Opening computers
• Mechanical and industrial production
• Woodworking and carpentry
• Metalwork and fastening wood to metal
• Flammable environments

It should also be noted that some specific types of screwdriver are best suited to certain applications. For instance, the best electrician's screwdrivers will be insulated to protect the user. Conversely, Phillips screwdriver uses are more varied as these tools are suitable for a range of general-purpose applications.

Triangle Screwdriver

Tools featuring a triangle screwdriver head are less common, but they are ideal for certain applications. The triangular screwdriver head is beneficial as its design makes it more secure and tamper-proof than alternatives. These tools are often used with appliances, toys, and electronics.

Magnetic Screwdrivers

Screwdrivers with magnetic tips allow screws to be attracted by magnetic force. This reduces the risk of accidentally dropping them. Magnetised tools are useful for working on electronics where screws are small and can be easily dropped into hard-to-reach places.

Ratchet Screwdrivers

Ratcheting screwdrivers are a type of screwdrivers that have a built-in mechanism, allowing the application of force only in one direction while enabling free movement in the other direction. These hand tools function similarly to ratchet spanners.

Screwdrivers come in many different sizes. As well as the standard large, medium, and small screwdrivers, there are also stubby screwdrivers that are ideal for use in tight or confined spaces. The tip width and the length of both the blade and the overall tool are usually measured in millimetres (mm).

You should note that some sorts and brands may offer different sizing options to others. For instance, there are four standard Phillips screwdriver sizes. These range from #0 to #4, where #0 is the smallest screwdriver.

Some tools can also be classified by torx size. This is shown by the letter T followed by a number - for example, T10 screwdrivers. It ranges from miniature screwdrivers right up to T45 and beyond. This system can also be applied to screws, helping you choose the corresponding screwdriver type for a particular-sized screw.

With various types available, you may wonder how to choose the best set of screwdrivers for your task or project. When selecting a suitable screwdriver, consider the following factors:

• Drive Type Compatibility: It is essential to match the screwdriver tip with the screw head type, such as Phillips, flathead, or torx, to prevent damage to both the screw and the tool.
• Size and Length: The size and shaft length of the screwdriver should be appropriate for the job at hand, ensuring you can apply the necessary force and reach into the work area comfortably.
• Handle Comfort and Grip: Choosing a screwdriver with an ergonomic handle that provides a secure grip can significantly improve control during use and reduce hand fatigue over extended periods.
• Material and Durability: Choose screwdrivers made from durable materials, such as chrome vanadium steel, to ensure they can withstand the rigours of regular use without failing.
• Insulation for Electrical Work: If you're working with electricity, select screwdrivers that are properly insulated to protect against electric shock and are suitable for the voltages you will encounter.
• Magnetic Tip: A screwdriver with a magnetic tip can be particularly useful for holding screws in place, making it easier to work in tight or difficult-to-reach areas.

Upon choosing the right screwdriverto complete your task, it is important to understand the best practices to use it in the most effective way and for extending its lifespan further. Following are some of tips you can consider:

Pre-drill Pilot Holes: Before driving a screw into wood or another material, pre-drilling a pilot hole can help guide the screw and prevent the material from splitting.

Use the Correct Size: Always use a screwdriver that matches the size of the screw head to avoid slipping and damaging the screw.

Apply Pressure Evenly: Make sure that the screwdriver is aligned with the screw and apply pressure evenly to maintain a firm grip and control over the tool.

Leverage Your Wrist: For maximum torque, position your hand correctly on the screwdriver handle and use your wrist effectively to turn the screwdriver.

Keep Them Organised: Properly storing your screwdrivers protects the tools from damage and keeps them organised and ready for use.

Safety Precautions When Using Screwdrivers

Apart from using the screwdriver effectively for your task, it is also crucial to consider your safety during use, particularly when you are using one during an industrial task, where safety is heavily prioritised to avoid the risk of injuries. Consider the following safety prior to picking up a screwdriver:

• Wear Protective Gear: Always wear safety glasses to protect your eyes from flying debris, which can occur unexpectedly while working with screwdrivers.
• Check for Damaged Tools: Before using a screwdriver, inspect it for signs of wear or damage to avoid accidents that can arise from using compromised tools.
• Avoid Using Screwdrivers as Pry Bars: Screwdrivers should not be used as pry bars, as this misuse can lead to the tool breaking and potentially causing injury.
• Keep Hands Clear: Position your hands and fingers away from the path of the screwdriver to prevent injuries in case the tool slips.
• Work in a Well-lit Area: Adequate lighting is crucial to reduce the risk of accidents by ensuring you have a clear view of your work area.
• Use Insulated Screwdrivers for Electrical Work: As mentioned above, when working on electrical tasks, use screwdrivers that are specifically designed and insulated for such work to protect yourself from electricshocks.