Bit Bit Disc On Angle Grinder Cannot Unscrew Nut

Roughing

If it is necessary to remove a layer of paint or other application, as well as rust from any surface, use a brush. They are disc-shaped or in the form of a bowl with built-in metal wire.

disc, angle, grinder, cannot, unscrew

The wire in these attachments can be twisted or loose. Its thickness can also be different. The thicker the wire, the more roughly the roughing disc or bowl is used, and vice versa.

Choosing and Replacing Discs for Angle Grinder

Angle grinder (angle grinder), in common people called “angle grinder”, is widely used at construction sites and in everyday life during repairs. It can be used to carry out many different technological processes. In order to choose the right tool for performing a certain type of work, you need to familiarize yourself with what kind of discs and attachments for an angle grinder are. The tool for this device is selected by size and purpose.

Cutting discs

The most common task performed with an angle grinder is cutting various materials. The choice of tool material also depends on what material needs to be cut.

  • Metal cutting. The metal cutting disc is made from crystalline alumina corundum, as well as from a synthetic corundum called fused alumina. The main color of wheels for cutting metals is blue.
  • Cutting stone and concrete. To cut stone, you should choose a disc made of another abrasive material. silicon carbide. This abrasive easily cuts white brick (silicate) and slate. But to cut red brick, some types of concrete or ceramic tiles, this circle material will not work. Stone discs are available in green.
  • Cutting ceramic tiles, red brick, porcelain stoneware and concrete. For these purposes, a diamond disc is already used. This nozzle is made of metal, an abrasive mass with diamond chips is applied to the cutting edge. The illustration above shows a segmented saw blade designed for dry cutting of material. All-metal discs require water cooling during operation.
  • Wood cutting. Although there are saw blades on the market for wood that are no different from circular saw blades, it is best to avoid using them for safety reasons. When working with such a tool, the user often receives serious injuries due to jamming, bouncing, accidental slipping of the tool, etc.
  • Therefore, if you are still going to use a saw blade for wood, then you should adhere to safety measures. The angle grinder must be fitted with a protective cover and handle, and the user must wear a face shield or goggles. In addition, you must not use this tool to cut materials not intended for it.

    The safest are discs on wood, along the end of which a chain from a chainsaw is installed. In the event of a tool jam, the chain stays in place and the disc rotates idle, reducing the likelihood of injury to the user.

    Using a penetrating lubricant

    Liberally spray the flange-shaft connection with WD-40 fluid. It tends to penetrate into inter-threaded spaces and small cracks. After applying the liquid, wait about 5 minutes and try to unscrew the fasteners with a standard wrench.

    Sewing off a jammed circle

    If, after applying the first 3 methods, the nut does not loosen, then the remaining abrasive disc between the flanges can be grinded off. To do this, do the following.

    • Use pliers to remove the rest of the circle around the edges of the nut as much as possible.
    • Clamp a piece of sheet metal as thick as the disc itself in a vise, turn on the angle grinder and grind off the rest of the wheel on the end of the sheet metal.

    Instead of iron, you can clamp a piece of an abrasive wheel in a vice. In this case, the grinding of the rest of the tool between the flanges will be faster, and the nut can be unscrewed by hand.

    But the use of a stationary abrasive wheel requires great care, because when grinding off the remains of the tool, the geometry of the flange can be damaged. If this happens, you will have to trim the nut.

    Unwinding methods if the disc is jammed

    What to do if the hold-down flange is stuck? This nuisance, when the nut is bitten, often occurs if, while working with thick and durable materials, the tool is jammed in the workpiece. In this case, the abrasive wheel often breaks, and the spindle continuing to rotate tightly tightens the clamping flange. There are several ways to spin the angle grinder if the disc is jammed.

    Heating nut

    The nut can be heated with a gas torch, hot air gun or blowtorch. The heated flange can usually be unscrewed with a standard wrench for an angle grinder.

    With a hammer drill or a drill in slotting mode

    You can unscrew the disc on an angle grinder without a key using a drill or a perforator, having previously switched it to the jackhammer mode. A suitable drill is used as a working nozzle, most often 6 millimeters. Rest the drill against the edge of the clamping nut hole, fix the movement of the spindle and move it from its place by short-term activation. This method allows you to turn away even very difficult snacks.

    Replacing a disk in normal mode

    Regularly working with an angle grinder, you need to constantly change the wheels, which are a consumable. If the tool is already inconvenient to work, then the worn out abrasive wheel should be replaced.

    Important! Be sure to check the disconnection from the mains to avoid personal injury.

    With open-end wrench and socket

    Grind the working surface of the key for seventeen to four mm in thickness. Carve four projections along the twenty-four mm socket so that they fall into the holes of the flange.

    The open-end wrench must be placed under the disc. Put the socket head on the nut of the angle grinder, without a ratchet, turn it in the direction of rotation of the wheel.

    With a gas wrench

    The use of this tool is justified by an increase in the applied torque due to the increased shoulder. It will be much easier with a gas wrench to unscrew a jammed connection. However, when eliminating biting, it is important to remember that if you apply excessive force, there is a risk of damage to the spindle lock or the jam nut.

    Warming up

    The clamping nut must be heated with a hot air gun on another gas burner so that the metal becomes more malleable. Then unscrew it with the universal wrench in the other hand. How to unscrew the nut once unscrew the angle grinder and unscrew it without. However, the risk of this method lies in the fact that there is an option to spoil the plastic parts not the gearbox elements.

    With a gas wrench

    The shoulder with the use of a gas wrench increases, therefore, it is not the moment of force that increases. It is easier to unscrew stuck joints with such a tool. If you try too hard, you risk crushing the flange, as it is also called, breaking the spindle rotation lock.

    READ  Difference Angle Grinder From Angle Grinder

    Measures to prevent jamming

    By taking care of the safe operation of the angle grinder in advance, you will save yourself the trouble of taking corrective measures. Such events include:

    • Placement of cardboard or plastic washers between disc, flange and spindle head. They do not allow the tool to jam, but even if corkscrewed, they can be removed / melted and the element can be easily unscrewed.
    • The abrasive wheel must be correctly positioned. To do this, place the front side of the circle on the support flange (picture to the gearbox). It must not come into contact with the clamping nut. In this case, the standard metal ring in the center will act as a washer that protects against jamming.
    • Weld a regular nut on the clamping flange, which allows you to press the installed disc using a conventional wrench.
    • Check the tightening torque. No excessive force is required to install the cutting element. Otherwise, it will jam under intense loads.

    Safety regulations

    When working with an angle grinder, it is important to remember that this tool has an increased risk of injury. Accordingly, it is impossible to lose vigilance in any case, even when disconnected from the mains. When using auxiliary tools and materials to replace the disc, be careful with them as well. Locksmith tools can also cause significant injury.

    Nowadays, almost everyone who loves and knows how to tinker has such a tool at home as an angle grinder. The correct name for this tool is angle grinder (angle grinder). angle grinder it is called due to the fact that the first mechanisms of this type were brought to the Soviet Union from an angle grinder.

    In its classic version, the angle grinder is a hand-held power tool with an abrasive wheel for grinding flat metal surfaces. But using this simple mechanism, you can also cut sheet metal, fittings, ceramic tiles.

    Squeezed a disc into an angle grinder How to unscrew without problems!

    For the development of the channel.

    How to unscrew the disc nut of an angle grinder (angle grinder) if it is bitten

    So, if there is no way with the key, even if you insert it and hit it slightly with a hammer, then we begin to use something more serious.

    The first thing you can try, but again without fanaticism, is to take a rod, insert it into the holes on the nut and, using a hammer, move the nut in the direction of its untwisting. The main thing here is not to break the button and not to rip the holes, as here

    The second thing that many advise is to warm the nut. We warm up the nut. As a result, it is slightly, but physically still obliged to expand. Resizing may or may not help.

    Do not pull all the way until the scroll hold button stopper or the button itself bursts. In this case, it is not the tool with which you unscrew it that breaks, but often the case of the angle grinder.

    The third method is the most effective, and, oddly enough, one of the safest for the angle grinder itself.
    We take and break off the edges of the disk along the nut.

    Next, we use a thin metal plate or another disc (thinner), and maybe a second angle grinder with a disc. In this case, a broken disc must be turned either with a plate or a disc. We try to sharpen the disc so as not to damage the nuts holding this disc, because they will still be useful to us. So we sharpen the whole broken circle until we grind it off and the nut is unscrewed.

    This business is 4-5 minutes, no more.

    If you will be using a second disc or metal plate, it is best to insert them in a vise to hold them. Since it is dangerous to hold such objects with your hands. This is the most effective method.!

    Warming up

    The clamping nut must be heated with a hot air gun or gas torch to make the metal more pliable. Then unscrew it with the universal wrench or by hand. But the risk of this method is that you can spoil plastic parts and gear elements.

    Why bites the nut on the angle grinder that holds the disc

    I will say, perhaps, a well-known truth. It bites nuts more often on angle grinders with a disc size of a significant size, say, 150-180 mm or more. The thing is that the resulting torque, in the case of a disk impact at the time of the start of cutting, is much greater than for a disk, say 125 mm. As a result, the nut is tightened by inertia so much that it is very difficult to break it in the usual and usual ways. Now about the special ways.

    A jammed nut: how to unscrew a disc on an angle grinder?

    An angle grinder is a multifunctional but capricious tool that does not tolerate haste and negligence. Breakdowns and breakdowns are the result of careless handling or safety violations. And the most common problem when working with an angle grinder is a jam of the abrasive tool between the support flange and the clamping nut. How to unscrew a disc on an angle grinder without damaging parts and the tool itself?

    How to avoid biting the disc nut on an angle grinder

    And a few words about preventing such unpleasant precedents again. You can use small cardboard spacers by inserting them between the disc and the nut. As a last resort, we use a disc of a smaller diameter, unless, of course, the nut is tightened from above. As a result, it will be possible to unscrew such a nut without any problems. It will not be squeezed, for a bite on the thread.

    And another small video about a problem that I studied on my own experience.

    Disk destruction

    Before unscrewing the nut on the angle grinder, you will have to completely crumble the disc. If it is already destroyed, you can break it with your hands. Solid circles can be sawn with a hacksaw or a metal blade. The inner metal ring and pieces that do not lend themselves to mechanical stress should remain from the abrasive wheel. Then you need to clamp a metal profile or any unnecessary plate in a vice, the thickness of which is less than or equal to the thickness of the disc (but not more). Then switch on the angle grinder and grind off the remaining abrasive to the seat sleeve. Then the flange can be easily unscrewed with the universal angle grinder wrench.

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    You can take care in advance so that the tool does not get caught in the angle grinder:

    • cut washers out of cardboard or plastic and place one under the disc and the other between the disc and the flange. Even if the circle gets stuck, the plastic washer will melt when heated;
    • the face of the abrasive tool, to which the marking label is affixed, must be in contact with the support flange and not with the clamping nut. With this installation, the metal ring of the circle acts as a washer and protects it from jamming;
    • weld a standard hex nut onto the flange and unscrew it with a regular wrench;
    • if possible, the angle grinder wrench should only be used to loosen the clamping nut. When installing a new tool, it is better to tighten it manually or at least control the tightening force.

    How easy it is to unscrew the nut of an angle grinder if the disc is jammed

    How to avoid snacking?

    To avoid trouble when changing the angle grinder attachment, it is advisable to prepare in advance for work. To do this, you can insert a small spacer between the disc and the nut. Suitable material is cardboard, a piece of linoleum or plastic.

    If the fastener is constantly tightening too much, it is advisable to use a smaller diameter circle. It is also important to monitor the cleanliness of the tool, timely treat the thread with oil, WD-40.

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    an angle grinder, or as it is called more popularly and in a popular way, an angle grinder, nowadays an irreplaceable and very useful tool. Without him, neither here nor there! And if it suddenly fails, then you have to dodge in every possible way, look for alternatives and think about restoring the instrument. At the same time, it is impossible to use an angle grinder for its intended purpose because of a kind of simple lining when the disc does not unscrew. Rather, the nut that holds this disc is not unscrewed. Here you can “break the wood”, namely, bend or break the key, damage the lock button, break the case, but still not unscrew the very unfortunate nut. So, we will warn you right away, if it is not too late. If you suddenly do not unscrew the nut holding the disc with a key, then you need to change your tactics. And it is precisely the cardinal method of unscrewing that our article will be devoted.

    How to unscrew the disc nut of an angle grinder (angle grinder) if it is bitten

    So, if there is no way with the key, even if you insert it and hit it slightly with a hammer, then we begin to use something more serious.

    The first thing you can try, but again without fanaticism, is to take a rod, insert it into the holes on the nut and, using a hammer, move the nut in the direction of its untwisting. The main thing here is not to break the button and not to rip the holes, as here

    The second thing that many advise is to warm the nut. We warm up the nut. As a result, it is slightly, but physically still obliged to expand. Resizing may or may not help.

    Do not pull all the way until the scroll hold button stopper or the button itself bursts. In this case, it is not the tool with which you unscrew it that breaks, but often the case of the angle grinder.

    The third method is the most effective, and, oddly enough, one of the safest for the angle grinder itself.
    We take and break off the edges of the disk along the nut.

    Next, we use a thin metal plate or another disc (thinner), and maybe a second angle grinder with a disc. In this case, a broken disc must be turned either with a plate or a disc. We try to sharpen the disc so as not to damage the nuts holding this disc, because they will still be useful to us. So we sharpen the whole broken circle until we grind it off and the nut is unscrewed.

    This business is 4-5 minutes, no more.

    If you will be using a second disc or metal plate, it is best to insert them in a vise to hold them. Since it is dangerous to hold such objects with your hands. This is the most effective method.!

    Why bites the nut on the angle grinder that holds the disc

    I will say, perhaps, a well-known truth. It bites nuts more often on angle grinders with a disc size of a significant size, say 150-180 mm or more. The thing is that the resulting torque, in the case of a disk impact at the time of the start of cutting, is much greater than for a disk, say 125 mm. As a result, by inertia, the nut tightens so tightly that it is very difficult to break it in the usual and usual ways. Now about the special ways.

    Reasons for biting

    Typically, this problem occurs on an angle grinder with a working surface diameter in the range of 150-180 mm. When a strong torque occurs, the disc bites. This leads to the fact that the attachment cannot be removed with a conventional wrench, even with the application of serious physical effort.

    The second common reason is the use of a disc for an angle grinder that does not correspond to the factory parameters of the tool. This leads to a disruption in the operation of the entire mechanism and jamming. In rare cases, the nut does not lend itself to loosening when rust appears on its threads. This most often occurs during long-term use of the instrument or storage without changing the nozzle.

    Important! Angle grinder discs are available in standard sizes, with diameters ranging from 115 to 230 mm. The landing shaft itself is produced with a diameter of 22.2 mm, when using older models, an adapter is required.

    The angle grinder is a simple and useful tool for home or professional use. The most common problem while working with it is biting the nut that holds the disc. This can be dealt with by mechanical action on the mechanism (blows to the mount, using a lever and grinding the disc), and by chemical methods. treating the thread with oil or rust solvent.

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    Why bites the nut on the angle grinder that holds the disc

    I will say, perhaps, a well-known truth. It bites nuts more often on angle grinders with a disc size of a significant size, say, 150-180 mm or more. The thing is that the resulting torque, in the case of a disk impact at the time of the start of cutting, is much greater than for a disk, say 125 mm. As a result, the nut is tightened by inertia so much that it is very difficult to break it in the usual and usual ways. Now about the special ways.

    How to unscrew the disc nut of an angle grinder (angle grinder) if it is bitten

    So, if there is no way with the key, even if you insert it and hit it slightly with a hammer, then we begin to use something more serious.

    The first thing you can try, but again without fanaticism, is to take a rod, insert it into the holes on the nut and, using a hammer, move the nut in the direction of its untwisting. The main thing here is not to break the button and not to rip the holes, as here

    The second thing that many advise is to warm the nut. We warm up the nut. As a result, it is slightly, but physically still obliged to expand. Resizing may or may not help.

    Do not pull all the way until the scroll hold button stopper or the button itself bursts. In this case, it is not the tool with which you unscrew it that breaks, but often the case of the angle grinder.

    The third method is the most effective, and, oddly enough, one of the safest for the angle grinder itself.
    We take and break off the edges of the disk along the nut.

    Next, we use a thin metal plate or another disc (thinner), and maybe a second angle grinder with a disc. In this case, a broken disc must be turned either with a plate or a disc. We try to sharpen the disc so as not to damage the nuts holding this disc, because they will still be useful to us. So we sharpen the whole broken circle until we grind it off and the nut is unscrewed.

    This business is 4-5 minutes, no more.

    If you will be using a second disc or metal plate, it is best to insert them in a vise to hold them. Since it is dangerous to hold such objects with your hands. This is the most effective method.!

    How to unscrew a disc (nut) on an angle grinder, if bitten, jammed, does not unscrew

    an angle grinder, or as it is called more popularly and in a popular way, an angle grinder, nowadays an irreplaceable and very useful tool. Without him, neither here nor there! And if it suddenly fails, then you have to dodge in every possible way, look for alternatives and think about restoring the instrument. At the same time, it is impossible to use an angle grinder for its intended purpose because of a kind of simple lining when the disc does not unscrew. Rather, the nut that holds this disc is not unscrewed. Here you can “break the wood”, namely, bend or break the key, damage the lock button, break the case, but still not unscrew the very unfortunate nut. So, we will warn you right away, if it is not too late. If you suddenly do not unscrew the nut holding the disc with a key, then you need to change your tactics. And it is precisely the cardinal method of unscrewing that our article will be devoted.

    How to avoid biting the disc nut on an angle grinder

    And a few words about preventing such unpleasant precedents again. You can use small cardboard spacers by inserting them between the disc and the nut. As a last resort, we use a disc of a smaller diameter, unless, of course, the nut is tightened from above. As a result, it will be possible to unscrew such a nut without any problems. It will not be squeezed, for a bite on the thread.

    And another small video about a problem that I studied on my own experience.