So before you begin, just make sure the screwdriver fits the screw head properly. Thankfully, the secret technique to how to use a screwdriver is very easy. Fit the screwdriver into the matching screw head, apply inward pressure on the screw, and start turning. So turn right clockwise to tighten and left counter clockwise to loosen.
There are three basic parts of a screwdriver: the handle, the shank, and the head. As I mentioned at the beginning of the article, some screwdriver types like Phillips are constructed to cam out. This is a double-edge sword. While it is actually a feature to avoid over-tightening, it also can strip the screw head. A stripped screw head may become unusable and need additional tools to get it out.
You may have to drill a hole through it with different types of drill bits or use a more powerful tool like a cordless hammer drill. The hex screwdriver is an unusual hybrid form of screwdriver used to fasten bolts rather than screws. The straight handle of the hex socket screwdriver allows users to turn the bolt with very little clearance space required.
The most common use of hex screwdrivers is in bicycle maintenance, as well as in assembling furniture. However, using a tw0-handle Allen wrench is a better choice when completing these tasks, because the two-handle Allen wrench offers higher torque application than what comes with a narrow screwdriver handle. Robertson screwdrivers , also known as square head screwdrivers, are the least commonly used screwdriver type.
However, they are quite popular in their country of origin, Canada. They also maintain an incredibly high torque tolerance. The torque tolerance of the Robertson screwdriver is sometimes considered to be the highest of all screwdrivers.
Robertson screwdrivers have a recessed square socket. Since there is no tip, it is highly unlikely that the Robertson screwdriver will fall out of a recess. This means that very high turning force can be applied when using a Robertson screwdriver. In fact, it is more probable that the bolt will snap off before the Robertson screwdriver will slip. This type of screwdriver is most commonly used in the furniture and automotive industry due to its durability. Although not found in basic home tool kits, Robertson screwdrivers are often included in comprehensive screwdriver sets.
The tip of a Tri-wing screwdriver somewhat resembles a pinwheel. This screwdriver type is used to work screws that have triangular sockets with three wing extensions.
Since these screws have such a unique slot, they are impossible to remove without a tri-wing screwdriver. These screwdrivers were first manufactured to be used in aerospace engineering, but are now easily found used in home electronics. Tri-wing screwdrivers are expensive and not as easily available as other types of screwdrivers. However, their biggest benefit is that the can tighten to extremely high torque values.
Also known as TAs, tri-angle screwdrivers have a triangle shaped tip for slotting into place on screw heads with triangular depressions. These screwdrivers are often used in the toys, electronics and appliances industry for increased security. However, a hex screwdriver can also grip TA screws, so not many DIY or home tool kits contain tri-angle screwdrivers. Also known as three-prong or Y-tip drivers, the tri-point driver features a tip with three blades set at degree angles, making a Y shape.
The screws made to work with these screwdrivers are quite popular in the electronic industry. Tech giants like Nintendo and Apple use them in their phones, gaming systems, and other devices.
Tri-point screwdrivers also address the security issues that accompany tri-angle screwdrivers compatibility with hex screwdrivers. Tri-point screws can only be worked with tri-point drivers. Not to be confused with the British term for a wrench, the spanner is also known as the Snake-Eyes screwdriver , pig-nose screwdriver, and drilled head screwdriver. These strange screwdrivers are equipped with a two-prong tip — much like a barbecue fork — which is used to work flat-head screws with two tiny rounded depressions on either side of the head.
This makes it virtually impossible to remove these types of screws without a spanner. Since they are quite secure, these screwdrivers are usually used by maintenance workers on bus terminals, elevators, restrooms, and subways.
Spanners are available in a size range of four to Also known as a bow tie screwdriver, these tools are used to work screws that have a bow-tie-shaped slot. These screwdrivers are used throughout the automobile industry and were popularly used in old General Motors GM vehicles. A clutch screwdriver comes with improved torque and can withstand more turning force than others.
However, the matching screws can also be loosened and tightened with slotted drivers. There is another, more secure, version that can be screwed by a slotted driver but cannot be loosened by one.
A flat head screwdriver is also sometimes referred to as a slotted screwdriver. These screwdrivers are the easiest to recognize because of its wedge-shaped end. These hex keys are sometimes referred to as Allen wrenches and these screwdrivers usually come in an L-shaped key with no handle. The middle part between the blade and the handle is called the shank. On its lower part tip or blade is made.
On the upper part either there is a hole through which a wire is passed or this end is made flat so that when this part is fixed to handle it does not allow the shank to move separately. These are generally made of carbon steel. Blade is the lower part of the shank. It is also known as tip.
This part is hardened and tempered. As its name indicates these types of screwdrivers are used for tightening or loosening different types of screws. These are available in small as well as larger sizes. Flathead screwdrivers have a handle of wood or plastic fixed to them. According to needs, there are light-duty screwdrivers or heavy-duty screwdrivers.
They have a flat tip. The tip of these types of screwdrivers is different from that of others. This tip is pointed and is made after cutting four flutes. Philips screwdrivers are used where the screw has T cross-shaped groove at their heads. These screws are available in varying numbers measurements. Torx screwdrivers are very common and are often used by automotive engineers.
Sometimes they are also called star tips by an engineer. This driver has a star-shaped tip with 6 round lobes. A Torx screwdriver has a low radial force due to the spherical geometry of the lobes, which improves the life of the screw and the screwdriver bit.
Unlike Philips or Pozidriv screwdrivers, even on power devices with high driving speeds, too much torque can be transferred with no chance of equipment slipping, which makes it safer to use.
Torx-type screwdrivers come in a variety of sizes and use a numbering system such as T8, T10, T15, T25, etc. As the number increases, the tooltip size increases. The square screwdriver is also known as the Robertson screwdriver. A Canadian invented this screwdriver. Engagement of a fairly tapered square-shaped opening screw with a square projection, which involves no angle, neglects the cam-out effect, thus improving centralization.
A slight taper shape in front of the tool provides a good locking with screws and hence makes it more suitable for use. These types of screwdrivers were first used by the Ford Motor Company for industrial purposes, as these drivers speed up production, reduce losses, and are highly reliable. Unlike the Phillips screwdriver, the pozidriv screwdriver has two cross marks that are offset at an angle of 45 degrees. These are widely used in European countries.
This shape does not completely overcome the cam-out effect but gives better resistance to slipping and provides more stability than the Phillip screwdriver. So, it is used for use that requires huge torque for tightening of the screw. It has six straight portions like a hexagon. These are often used to fasten bolts instead of screws.
You may be seen these bits in your bitcoin box to tighten or lose hex bolts , nuts , and screws. There is no sliding or cam-out effect when driving it, so the most powerful driver tools can be fitted with hex arranging bits and thus, it produces faster and with less error.
The Offset screwdrivers have also a flat blade. But no handle is used in these screwdrivers. Their shank is turned at 90 angles at both ends and bits are made on both ends. In cases of narrow or slanting spaces, where ordinary flat screwdriver cannot work, this offset screwdriver is used.
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