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The Consummate Guide to Screwdrivers

Our guide explains everything you demand to know almost screwdrivers and the different types available.

Reviewed by Luqman Said Abdullah, Technical Support Engineer (January 2021)

Screwdrivers are a type of paw tool used for the insertion and removal of screws. They are bachelor in a multitude of variations to correspond to the correct screw drive.

The drive or caput of a screw has a shaped cavity and protrusion that fits the screwdriver tip. A turning forcefulness known every bit torque tin be applied in either a clockwise or counter-clockwise direction.

Screwdriver Uses and Applications

The screwdriver is one of the well-nigh essential manus tools in any tool kit. In that location are many situations and professions where a screwdriver is integral to conveying out a specific task revolving around loosening or tightening fasteners.

Some of the almost mutual 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 metallic

• Combustible environments

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

Types of Screwdrivers

The different types of screwdrivers are typically determined by the drive tip shape which corresponds with the specific caput type of a given screw. Withal, other screwdriver types are application-specific or are intended for particular industries.

Some of the near common types of screwdrivers are detailed in the sections beneath.

Phillips Screwdriver

Also known equally cantankerous-head screwdrivers, Phillips screwdrivers are one of the near common types. Merely what is a Phillips head screwdriver? These tools are designed to fit screws with Phillips heads, which have a cantankerous-shaped recess - hence the culling name of cross screwdriver. They were invented to cope with higher torsion.

Torx or Star Screwdriver Known variously as star head screwdrivers, pointed screwdrivers, six-point screwdrivers, and torx screwdrivers, these versions are yet type. Torx is the trademark for a type of screw caput with a six-point star-shaped intrusion, hence the generic proper noun star screwdriver. These exist to ensure fifty-fifty more torque can be applied, in mechanical production, for case.

Insulated Screwdrivers

As well known as rubber screwdrivers, insulated screwdrivers are important for taking safety precautions in potentially hazardous scenarios. They are constructed from non-conductive materials such as condom. VDE screwdrivers are also designed with safety in mind. VDE is an internationally-accredited institution that tests tools to certify that they meet the necessary condom standards. These tools are platonic for electricians.

Torque Screwdrivers

Not to be confused with Torx, a screwdriver with torque is similar to a torque wrench. Both are used to employ a specified torque which is meant to be just enough but not too excessive. They are ideal for tightening screws sufficiently without breaking the material they are fastening and inversely tight plenty so they do not fall out. A torquing screwdriver has a torque-limiting clutch that allows a limit on how much force is applied beyond a certain threshold.

Flathead Screwdriver

The slot or flat-headed screwdriver is probably the most mutual form of hand tool. Information technology has a flattened tip used for screws with a straight linear intrusion across the head. Flat blade screwdrivers are multi-purpose and can typically exist used for a range of applications.

Tri-Wing Screwdriver

These are used for specific devices such equally consoles, mobile phones and cameras. They often feature quite pocket-sized tips to enable use with smaller screws and components.

Pozidriv Screwdriver

Pozidriv screwdrivers are essentially an upgraded version of Philips. They were designed to reduce cam-out, which is the process where a screwdriver slips out of the spiral caput when more torque is practical.

Hex Screwdriver

Allen keys or wrenches are more popular tools for loosening or tightening hex screws. However, hexagon screwdrivers be to serve the same purpose and hex-head tools are often included in sets.

Square Screwdriver

The square-headed screwdriver fits screws with a square-shaped recess. It was invented to reduce the cam-out issue of the slotted screws and therefore speed up the fastening process.

Electric Screwdrivers and Impact Drivers

Electric or cordless screwdrivers are generally compact ability tools that are good for various tasks such equally assembling piece of furniture or screwing into softwood or other similar materials. Touch drivers, on the other hand, are essentially a more heavy-duty screwdriver blazon, intended for tasks similar tightening or loosening fasteners using sudden strength to bulldoze into or remove from harder, denser materials.

Precision Screwdrivers

These screwdrivers are used for very small devices where extremely minor screws are used. An example of this would exist precision work on watches and mobile phones.

Other Screwdriver Types

Triangle Screwdriver

Tools featuring a triangle screwdriver caput are less common, but they are ideal for sure applications. The triangular screwdriver caput is beneficial as its blueprint 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 minor and can be hands dropped into hard-to-reach places.

Ratchet Screwdrivers

Ratcheting screwdrivers have a built-in mechanism that allows the application of force only in one management while assuasive free motion in the other direction. These hand tools part similarly to ratchet spanners.

Screwdriver Sizes

Screwdrivers come up in many unlike sizes. As well equally the standard big, medium and small, there are besides chubby screwdrivers that are ideal for use in tight or bars spaces. The tip width and the length of both the blade and the overall tool are usually measured in millimetres (mm).

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

Some tools can also be classified past torx size. This is shown by the alphabetic character T followed past a number - for example, T10 screwdrivers. Information technology ranges from miniature screwdrivers right up to T45 and beyond. This arrangement can likewise exist applied to screws, helping y'all choose the corresponding screwdriver for a particular sized spiral.

Parts of a Screwdriver

The three main parts that constitute a screwdriver are as follows:

• Handle

• Shaft or shank

• Drive tip or bit

All iii parts are made in a production process using machines to form the correct shape of material using an extruder and heat-treating information technology to achieve the desired tensile forcefulness.

Screwdriver Handle

Screwdriver handles are used for gripping and are generally shaped to foreclose rolling on flat surfaces. They tin can also be ergonomically-designed to amend condolement when gripping. The materials used in the manufacturing process take inverse over fourth dimension and there is now also more variety for tools intended for utilise in specific applications. Most ordinarily, the handles are ergonomic and made of a composite of difficult plastic such every bit cellulose acetate and rubber. They can too be covered in a non-skid, soft material similar thermoplastic safe to improve grip.

Shaft or Shank

The shaft or shank is ordinarily made of strong steel to ensure that bending or twisting deformation does non occur when applying force. The shaft will be rounded or hexagonal to allow a spanner or wrench to exist used to apply increased torque. The shaft is generally different colouration and material to the drive tip which tin be interchangeable.

Drive Tip or Flake

The drive tip can be an integrated role of the shank if it is not detachable. Alternatively, information technology can exist an interchangeable part known as a driver - similar to drill bits. These are designed for use with multi-bit tools. The tip may too exist known as the screwdriver head.

Screwdriver Brands

Sets of Screwdrivers

Screwdriver sets are highly useful when information technology comes to having a variety of pieces in one place. For case, there are precision screwdriver sets for delicate electronic piece of work, as well as more multi-purpose electrician screwdriver sets for professionals.

Sets typically incorporate a multifariousness of tools in a range of sizes. Depending on the set, this could include multiple dissimilar types or varying sized versions of the same tool. A popular example of this is torx screwdriver sets. The best set of screwdrivers volition ultimately depend on your requirements so exist sure to select the nigh suitable set for your chore or industry.

FAQs

Can You Use a Magnetic Screwdriver on a Computer?

Aye - the magnet is more often than not not strong plenty to crusade damage to electrical components. However, yous should exist careful not to touch exposed circuitry nigh screw holes on a motherboard or difficult drive.

What are the Best Screwdrivers?

High-quality, good screwdrivers are available from a range of leading brands and manufacturers. Notwithstanding, the best screwdrivers will largely depend on your specific needs. For case, an electrician volition have different requirements from a hobbyist.

What Materials are Screwdriver Bits Made from?

Drive tips can be fabricated from a variety of metals and alloys, including:

• Titanium

• Stainless steel

• Tool grade steel or S2

• High-speed steel or HSS

• Chromium-vanadium-molybdenum or CVM tool steel

• Other non-sparking metals to reduce combustion risk

Each has its own benefits and platonic applications.

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Source: https://uk.rs-online.com/web/generalDisplay.html?id=ideas-and-advice/screwdrivers-guide

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