How to fasten a drill bit in an electric screwdriver

To screw a bolt into a wooden part, you need a thread inside. Most often, special threaded bushings are used for this.

Usually for the installation of threaded sleeves use feather drills, but in this case the hole for the thread is too small, and if you take a feather drill with a large diameter, the hole for the head of the screw will get too big.

Save the situation can be an ordinary drill. make a hole with a larger diameter for the thread, but touching the hole itself. the threaded sleeve is easily enough hammered into the wood.

Tool kit

Usually such tools are sold in special cases, where each part has its own place.

The electric screwdriver drill itself consists of the main tool and a removable battery that is recharged from the domestic electric network.

To charge the tool use the special charger that comes with the set.

  • it is necessary to pick up the necessary nozzle (drill bit) for the drill;
  • then take the cutting tool and place it in the center of the chuck (between the open “cams”);
  • then it must be locked by turning the sleeve clockwise (the key with the key is inserted into the recess);
  • turn the sleeve to fasten the bit.

Changing the drill bit is easy, but you must first remove the previous. There are the following options for the situation:

  • standard drill removal (without damaging the chuck);
  • extraction of the drill bit in the absence of the key;
  • Removing a jammed cutting element.

If the screwdriver works properly, there should be no problem replacing the working tool. the operation is elementary. To do this, take the wrench designed to release the cartridge and insert it into the recess. Turning counterclockwise. Unwinding is done with special nails on the objects. There is also another option for drilling. To do this, turn on the rotary screwdriver mode, hold the outer cartridge body, and press the start button. In this way the drill bit can be easily released.

In the absence of a special wrench, the drill can be removed with a Phillips screwdriver or a nail. It should be inserted into the recess of the cartridge and locked in half. Turn the opposite side of the cartridge by hand. However, if such unscrewing does not work, then we take a gas wrench or a vise. These tools will help reinforce the rotation of the cartridge. If previous drilling options failed, you should use heavy artillery. In some cases, obtaining the drill is complicated by its external damage. In this situation, it is necessary to loosen the “knuckles” with gas keys and pressure. Completely clamp the cartridge with the keys and rotate (loosen).

In this process, both the wrench and the pressure are encouraged. You can also take a hammer and give a light blow to the cartridge. The vibration from the blows helps to relax.

A radical option in the most hopeless situation would be to turn the cartridge with a screwdriver. To do this, squeeze it in a vise and severely cut the cutting tool from the inside with the punch. Naturally, after such a procedure, a screwdriver should be included in the repair. To summarize, the procedure for inserting the drill bit into the screwdriver is quite simple, and even anyone who has never done it will be able to handle it. The main thing in this process. follow the recommendations.

See how to insert the drill into the screwdriver in the following video.

Heavy case

Well and it happens so, that the chuck in any way does not want to unscrew, and therefore from it the drill bit and is not pulled out. It should not happen in serviceable chucks, so if the chuck will not unscrew under any circumstances, it may indicate a malfunction.

Usually it does not happen abruptly. chuck begins to jam before it clamps so that then it does not untwist.

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In such a situation you can resort to two ways. I would like to mention right away that the chuck will have to be replaced after that. In this case, the drill bit should be taken out actually in order to save this very drill bit, well, as well as to make it possible to remove the defective chuck from the electric screwdriver. You can’t do that with a stuck drill bit.

    The first method is quite humane. You need to clamp the drill bit in a vise and try to turn the entire electric screwdriver around it. You can spray WD-40 in the chuck to make the task easier. To turn the whole electric screwdriver with a chuck can be possible only if its construction is such, that the chuck is rigidly coupled to the electric screwdriver and it is impossible to turn it otherwise than by pressing the start button. However, not all models have such a feature, so you can turn the chuck with a gas wrench. the plastic part of it will be damaged in this case. If the drill succumbed, you have to rotate the chuck back and forth and gradually pull it off the drill.

These are the ways to get the drill out of an electric screwdriver. If you have the second case, I apologize, but I do not know a more humane way, and I think that it does not exist. At least I took out the drill bits that way. And that concludes this article. see you later!

Types of faults

Typical cases where a chuck jams on a Metabo electric screwdriver. DeWALT etc.:

  • When attempting to use a drill bit of maximum size, the cams are dilated to the maximum, after which it is not possible to bring them together with the application of normal forces;
  • the drill bit or bit clamped in the chuck can not be ejected because the cams will not release. It is not uncommon for them to be clamped unevenly, which makes it difficult to secure the drill.

Less frequently, jamming of the jaws occurs during their free movement when they are compressed or uncompressed. usually caused by debris, dross, shavings, etc.п., caught under the curved part of one of the cams.

electric screwdriver functions by converting electrical energy into mechanical. The mechanical rotation of the tool in one direction or the other provides useful work.

There are 2 power supply options: mains and battery. The construction of both is almost identical, but the cordless tool is of interest. It is more mobile and more convenient because of its mobility.

fasten, drill, electric, screwdriver

The tool consists of the following main parts:

  • the body of the tool, in which everything is mounted;
  • electric motor, brush or brushless type;
  • The chuck, in which a replacement nozzle is installed;
  • Gearbox to transmit the rotation from the electric motor to the chuck;
  • safety clutch (to protect the motor in the event of a sudden stop of the replacement nozzle);
  • Start (button, switch);
  • regulating body (for speed, torque);
  • switch-over facility (for reversing or other functions)
  • other elements (lights, brackets).

How to Use a Drill | Using Tools 101 for Beginners | Cordless Power Drill

A battery is installed to power the electric motor.

The starting device, usually a pushbutton, is pressed. Contacts are closed; the battery current is supplied to the electric motor. The higher the pressure force, the harder the chuck rotates and with it the indexable tool.

When current is applied to the motor winding, the rotor begins to rotate relative to the stator. When the shaft rotates, the pinion mounted on the shaft rotates as well. It transmits torque to the gearbox.

From the gearbox, the torque is transmitted to the shaft on which the chuck is mounted. It has an interchangeable nozzle for drilling or screwing in the hardware.

Chuck (usually of collet type) is equipped with a replaceable bit. It takes the rotation from the electric motor and does useful work.

Drill bit is a cutting tool designed for drilling holes, a steel rod with a hexagonal shank on one end and a working part, which is inserted into the slot of the fastener, on the other. Drills have many differences, the choice is determined by the material to be worked with, and the design of the drill itself. On sale separately available models for:

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This wide range is due to the different geometry of the drill bit, i.e. in each type the arrangement of cutting edges, grooves, sharpening angles and the material of the bit itself may be different. Production technology of different companies may be different and affect the quality of products. The marking will tell you about the hardness of the steel, metal impurities in the alloy, technology and place of production.

In addition to technical orientation, when choosing, you should also take care of the simplest qualities. length and diameter. They respectively make it possible to make the required depth and diameter hole. Often drills are sold in sets: several different lengths of the same diameter or different diameters of one length to work with a particular material. But sets are made mainly with diameters up to 10 mm, larger and heavier models are purchased by the piece.

The shank of the bit determines the compatibility with a specific model of electric screwdriver. They are divided into conical, cylindrical, SDS, slotted, triangular, hexagonal. Hexagonal shank (aka HEX or hexagonal) fits almost any drill or electric screwdriver model. Their versatility provides them with the widest application field.

Drill bit for the quick-action chuck

Inserting and pulling out the drill bits in a quick-action chuck is easiest. There is no need to fumble with keys, take care of their safety and proper use. In the double and single models, the clutches are driven by hand, and often they already have clamping force limiters to tighten the cams, and the role of the clamping wrench is performed by the outer shell of the chuck.

The drill bit for the quick-action chuck must be inserted correctly and well secured, otherwise several unpleasant and even dangerous situations will occur in the work. unreliable attachment of the bit, spoiled material (in which you had to drill a hole), failure of the clamping mechanism, dust ingress into the structure.

In order to correctly fix a drill bit or bit in the quick-action chuck of an electric screwdriver, you must hold the chuck by hand and turn on the tool at high RPM, the chuck itself will clamp the drill. It is pulled out by the reverse action, that is, you need to clamp the chuck again and turn on the reverse, the cams will unclench.

Drills for electric screwdrivers with hexagonal shank

These drill bits can be clamped in a three-jaw chuck or fitted into a standard ¼-inch bit holder. The meaning of the hexagonal shank boils down to the transmission of powerful torque. It allows fast, quality drilling without scoring edges or breaking the inner surface. The quality of the hole also depends on the right choice of material. Even the very possibility of a hole occurring depends precisely on the correct material selection. The hexagonal socket prevents the bit from turning precisely by increasing the number of facets in the bit holder.

In order to ensure a snug fit and safe operation, the drill bit shank must correspond exactly with the drive hex of the electric screwdriver. Wide groove for spring retention according to ISO1173E6 is a prerequisite.3 or ISO1173C6.3. Such fasteners are required for use with all cordless tools without a cam chuck. This is a safety feature of the tool.

The only downside to consumables with a hex shank is that the ¼ bit holder will have less drilling accuracy than a cam chuck.

Electric screwdriver bits with hexagonal shank

Screwdrivers have a ¼-inch internal hexagonal recess (socket) and the bits are inserted directly into it. Tools become lighter and shorter without a chuck. The advantage is the shortened length. it makes it possible to work in hard-to-reach places. Precise selection of drill lengths with the same diameter. it is possible to drill in very confined spaces without disassembling already installed constructions or materials needed for repairs.

Drill bits with hexagonal shanks are in demand not only because of their versatility. When changing an electric screwdriver, all previously purchased drill bits and bits can be used with another model or drill. Due to their shape, they are gripped as tightly as possible by the tool holders and give a guarantee against slipping. The obligatory circular groove prevents the bit from falling out and ensures not only a quality hole, but also safety when working with an electric screwdriver.

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Why the drill bit falls out of the chuck?

It is quite common for many people to encounter a problem where the drill bit does not fit securely in the chuck and begins to fall out of the chuck. It should be said right away that if your tool is still under warranty, you should take it to the store for repair. Next, let’s try to figure out what is the cause of the falling out of the drill bit and how to deal with it.

There are three reasons for this problem:

  • factory defect in the manufacture and assembly of the torch;
  • wear and tear of the chuck’s fixing mechanisms;
  • Improper handling of the tool during operation.

If the cause is a manufacturing defect, the tool should be serviced when the problem is first discovered. If the chuck is worn, the only sure way to fix the problem is to change it. Drill bit falls out, most likely because the fixing elements in the chuck are worn out. You might be able to get a repair shop to replace worn-out retaining balls so you don’t have to replace the whole chuck. This type of repair is cheaper.

To avoid the problem of a falling out drill bit, you need to handle the tool correctly when working. Remember to periodically oil the bits and drills, and keep them free of dust and dirt after use. Hold the tool perpendicular to the plane and do not twist it when working. Do not apply too much pressure to the tool.

How to work in screwdriving mode?

Prepare your tool before you start your work. If you run the tool on battery power, you must put it on a charge.

The next step is installing the bit. To find the right bit, consider the size of the flat of the fastener and the type of slot. Bits vary in type and diameter:

  • Slotted. Most often used. Designed for tightening the countersunk head screws, flat head screwdriver, screws. The tip width can vary.
  • Phillips. They are used for screwing in and out self-tapping screws, countersunk head screws. Tip has four radiating diagonal ribs.
  • Hexagonal. Used for fasteners with hexagonal recesses in the head. Screws and screws of this type are used for assembling furniture and appliances.
  • For bolts and nuts. Nozzle with a tip that has a hexagonal recess inside. The tool is used as a nutrunner, for screwing in screws, bolts and screws.

There are other tips, but they are used less frequently. How to change a bit, or remove it altogether? After determining which bit is needed, insert it into the chuck. Method of installation depends on the type of chuck. The fastener is inserted as follows: twist the chuck counterclockwise until the distance between the jaws increases. Push the end of the bit between them, twist the chuck clockwise to make the jaws lock and secure the workpiece.

How To Use a Screwdriver Bits With Drill (Correctly)

In an electric screwdriver with a wrench chuck, the process of changing the bit is more complicated. First insert a wrench into the special hole on the tool, turn it counterclockwise to loosen the clamp. Bit is inserted and locked by turning clockwise.

The next step is to check the operability of the tool. If an electric screwdriver is powered by the mains, connect it to the socket. Press the start button, check if the bit rotates. Adjust the speed of rotation with the same button, loosening or increasing the pressure. Insert the bit tip in the cavity on the fastener’s flat bar and press the start button.

If you need to unscrew a screwdriver or a screw, switch the reverse button.

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