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Measurement Angle Measurers. Detectors Ground Scanners. Stud Finders. Wall Scanners. Digital Spirit Levels. Dumpy Levels. Inspection Cameras. Laser Distance Measurers. Laser Levels Rotary Lasers. The Engineers Post. In this article, we will discuss what are the different types of screwdrivers that are used in almost every industry. And also download the PDF file of this article at the end. A screwdriver is used for tightening or loosening the screw.
A round rod with a flat end, having a handle at the other end is called a screwdriver. The length of a screwdriver is measured excluding the handle. The length of a screwdriver varies from 50 millimeters i. A screwdriver has three main parts, as shown in the figure. Handle, generally wooden or plastic handles are fixed to the screwdrivers. In order to save the wooden handle from being broken, an iron is fixed to the 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. It is shown in the figure. Watchmaker screwdrivers are available in sets. In a set there are six screwdrivers, having number markings from 0 to 5. The smaller the number of the screwdriver, the smaller and thinner is its bit.
In place of the handle, a cap is fixed to the shank. The cap is fixed to the shank in such a way that both cap and the shank can be moved independently. For tightening or loosening a screw, the tip is placed at the head of the screw, and the cap is pressed with one finger, while with other fingers shank is rotated. A watchmaker screwdriver can be used in all kinds of instruments and watches. In appearance, it looks as shown in the figure.
These types of screwdrivers are used throughout the automobile industry and are commonly used in older GM vehicles. The clutch head screwdriver is also known as bow-tie drivers, these drivers are used to work screws that have a bow-tie-shaped slot.
The clutch screwdriver begins with higher torque and can resist greater turning force. But, this type of screw can also be tight and loose slotted drivers. There is another safe way that it can be screwed by a slotted driver but not loosened.
The tip of these types of screwdrivers is provided with a sharp point, unlike Philip Driver, it has bluntly rounded points. In addition, the angle of the tip is more like 45 degrees than the Phillip drivers. This driver is used on nautical equipment. The Frearson driver , also known as Reed or Prince, is pretty similar to the Philippe screwdriver in design, with some changes.
The different shape allows the driver to take out higher torque than the Phillips and to operate on Frearson screws of all sizes as well as a large number of Phillip screws. These types of screwdrivers are very familiar in the electronic industry and tech giants such as Nintendo and Apple apply them in their phones, gaming systems, and other devices.
The tri-point driver makes a tip that has three blades set at an angle of degrees, which is Y-shaped. So, It is also known as 3-prong or Y-tip drivers.
Tri-point drivers also have safety issues only that come with tri-angle driver compatibility with hex drivers. These types of screwdrivers were mostly used in the toy, electronics, and appliance industries and were added to improve safety.
It is also known as three-angle screwdrivers. It has a triangle-shaped tip for slotting on the screw head with a triangle shape. The tip of the tri-wing drivers resembles that of some pinwheels and is used to operate on screws that have triangular sockets with three wing sizes.
Because these screws have such a different slot, it is difficult to remove them without a tri-wing driver. Tri-wing screwdrivers are costly and not easily available like other drivers. These drivers were previously manufactured for use in aerospace engineering, but now you can easily found them in home electronics.
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