Instructions: How to remove the chuck from an electric screwdriver

Some are interested in how to remove the chuck from an electric screwdriver. It is required for preventive maintenance and repair work. Doing the necessary work with your own hands can save you money. There are several types of chucks, each with its own characteristics.

It is a hollow cylinder of metal, which contains a special ring with an adjusting sleeve. This element is mounted directly on the shaft. With the help of a tapered or threaded surface, the drill bits are secured.

To disassemble the chuck, you need a screwdriver, a hammer and some wrenches. If there is a vice, it will be easier to perform the task.

Design of a chuck for an electric screwdriver

The classic chuck for a standard electric screwdriver is made in the form of a hollow metal cylinder, which is equipped with a ring with a regulating sleeve, this component in an electric screwdriver is mounted directly on the shaft.

Next, use it to mount drills, sanding attachment. The thread or tapered surface ensures reliable fixation of the workpiece. There are two basic types of such a part:

Usually the more reliable type is considered the key. It holds the drill better.

It is especially recommended for heavy components with large diameters. Quick-clamping the same allows you to change such parts as easily as possible, even if the work should not use a drill, but a grinding attachment. It is the safest in operation.

Scheme of the device of a drill and a clamping chuck to it

Since each device has, in general, its own pros and cons, there is no certain, more preferable type of chuck at this time. menu

1.1 Which attachments can be used with an electric screwdriver chuck?

A set of nozzles for the work of such a device depends on what kind of work the master performs with it. This generally includes the following:

  • Phillips of various articles; under self-tapping screws;
  • hexagonal drill bits to match the corresponding notches on the screw heads;
  • devices for installation of bolts, nuts;
  • triangular bits;
  • stud specimens for common screws;
  • special drill bits for work on drywall (with special limiters, which do not allow to spoil material in case of careless work).
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Your kit may also include a sanding nozzle. It is only important when purchasing this part to identify which particular chuck this particular bit can be used with, so that it is easy to use.

When replacing such parts in the chuck, regardless of whether it is a key or a quick-action chuck, it is necessary to disconnect the power supply of the device (to avoid accidental start of the device) and follow the safety regulations to avoid injury.

Immediately after replacement, it is recommended to additionally recharge the power unit and only then return the device to work and test the drill. Pay attention, charging before further work should be 100%.

You can then test fit a new bit, grinder attachment. to menu

Types of fastening

In screwdrivers or drills, the tool holding fixture for fastening the tool can be attached in two ways. on the thread or taper.

To fasten in the first way, threads are made on the shaft of the tool and the inner cavity of this product. Either metric or inch threads can be used for mounting it. You can find out exactly which threads are used to mount this tooling by looking at the markings, which are usually stamped on the body of the fixture. For example, if the inscription says 1-15M13×1,3, it means that this product has M13 internal thread, and the numbers 1. 15, mean the limit dimensions of the tool, which can be fixed by the tooling.

If an inch thread is used for fixation of this technological equipment, but the abbreviation UNF is applied to the body. That is why before replacing it, it is necessary to check if the marking and dimensions in the tool correspond to each other.

The second way to mount it on the tool is to use a Morse cone. The end of the tool shaft is in the form of a cone. The mating part is formed in the body of the tool. It is fixed on the shaft. It is marked as B10, B12, B16, B18. This is the method of fixation most often used for screwdrivers.

Dimensions and markings

Before disassembling the electric screwdriver, it is necessary to determine the type of attachment of the cylinder. The marking will tell you. The inscription of the type 1-6B14 indicates the Morse taper fixation type, where the digits before the letter stand for the bit shank diameter in millimeters and after that for the size of the conical hole. There are 9 references from B7 to B45.

For chucks with threaded mount there is a marking like 1,5-13 M12x1,25. The numbers before the letter also show the permissible diameter of the bit’s tail end, and the thread dimensions in millimeters are after the letter.

Important! International screwdrivers are marked in inches and are labeled as follows 2-13 1/2. 20 INCHES. 1/2″ stands for inch and 20 is the number of thread revolutions per inch.

How to use the screwdriver

It is possible to ensure a long life for the tool if you follow the simple rules of operation:

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  • keep the machine free from moisture;
  • Always adjust the tool before use;
  • Disconnect the battery while changing accessories;
  • If you do not use the screwdriver for a long time, periodically start it up to discharge the battery;
  • Have several spare batteries.

Any man can do a screwdriver chuck change at home. By using the methods described above, you are assured of getting the job done quickly and with a minimum of effort.

How to remove the chuck

To remove the chuck, you only need to perform a few manipulations. This is a fairly easy process. First you need to find a hexagonal key for 10.

    The wrench must be squeezed very well into the chuck with the shortest end.

  • Now you can turn the screwdriver on for a time that is long enough for the wrench to hit the table while turning.
  • The socket will turn on the internal thread with which it is secured to the shaft.

This is one of the most common. But there is another effective way to try it. Unclamp the jaws completely and look inside. In the case where a screw will be installed inside, this will be considered an additional attachment that will lead to the shaft. The screw must be unscrewed completely. Only do this in a clockwise direction.

The hexagon should be clamped hard and try to turn it very sharply counterclockwise. As a result of these actions the cartridge must be loosened. If this does not happen, it is necessary to take a hammer and strike the wrench. Do it as carefully as possible so as not to damage the construction.

Additional measures

Sometimes it happens that none of the methods helped to cope with the problem. Then the complete tool must be unscrewed and disassembled and then the spindle with the chuck and gearbox must be removed from the construction. All that remains should be well clamped in a vise, and then you can remove the chuck using a wrench. It is worth noting that clamping must be done very carefully: there is a risk of breaking the machine because of too much effort.

It is worth noting that some models of screwdrivers are fitted with grooves, which can simplify the task of removing. But this is quite rare in modern tools.

The chuck can jam in the case when the tool is overheated. That’s why you should periodically give the machine a rest. It is also worth watching to ensure that the chuck does not start to “beat”. This too can cause malfunctioning.

How to use a screwdriver

The electric screwdriver, such a very necessary tool in the kit of the home craftsman, has the same principle of operation for all brands that are produced nowadays.

If you take a cordless power tool, the difference between cordless and corded tool is only in the type of power supply to the electric motor. The other parts and the order of connection are the same.

The tool sometimes needs to be repaired or inspected when working. To do this, you need to disassemble the tool. Especially often this operation is carried out in relation to the chuck. In principle, the chuck from all manufacturers is almost similar, except for a few points.

All parts and assemblies of an electric screwdriver in detail

In addition, chucks are divided into two types: cam and quick-clamp.

If it becomes necessary to remove the chuck, whether for repair or replacement, it is done as follows.

Prepare the tools for work, consisting of a screwdriver, a hexagon matching the profile of the chuck, a small but solid object such as a weight, a punch. It is necessary to wear protective glasses because the thrown away small object can get into the eyes.

Before you start, find out what kind of chuck you are looking for: with Morse taper, with thread and with thread plus an additional securing screw.

Know which type of chuck you are looking for by the marking. The inscription “1. 6 V10” is Morse taper, if “1.0.11” for Russian tools and “2-13″ mm ½. 20 UNF” for imported tools where the size is given in inches.

Three-jaw chuck with foreign-made metric threads

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It is very easy to remove the chuck cones simply by tapping the chuck body gently with a hammer. For the threaded one is a little more complicated.

Features of removal for different brands of screwdrivers

Makita often makes plastic chucks for domestic models with low power. When working with this design, you need to be especially careful not to damage the housing. If you remove the cam chuck, you first need to unclamp the cams.

Speaking of Makita, its tools are equipped with automatic locking. The chucks are single-feed.

Bosch models are similar in construction. Most brands use similar construction principles. The only difference is that Bosch screwdrivers have an autolot in the chuck.

Milwaukee is a good quality tool with a threaded chuck design and an additional screw locking. It must first be unscrewed, then knocked out. The manufacturer does not recommend changing the chuck yourself, but recommends contacting a service center. At first, the standard disassembly procedure is done. Sometimes if the usual option does not work, the tool has to be completely disassembled, taking out the gearbox with spindle.

The manufacturers Zubr and Hitachi, Metabo, DeWALT are very similar. If a chuck needs to be removed for replacement or preventive cleaning, it needs to be twisted off the shaft. Working with screwdrivers of these manufacturers is not difficult: the screw is unscrewed by standard method (clockwise), and then the body is pulled out, without additional effort.

Each owner must ensure that the tool is in good condition. All the elements of the chuck are properly lubricated so that it lasts longer and is easier to take apart for replacement.

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