How to change the drill bit to drill to do not attempt proved futile ?

What is drill and how to handle it?

Today drills are made from high-speed, alloy or carbon steels.To work on solid materials they are fitted with heavy-duty hardy tipped.In a special design, they are divided into the pen, the centering, with straight flutes and spiral (deep penetration).

As processed material they are differentiated as follows: on wood, metal, stone and concrete, glass and ceramics, diamond and universal.Each of them is suitable for a particular type of work, it should take into account before you insert the drill bit in a drill.

In continuous operation such situations arise when stuck in the drill drill, broken, worn or jammed cartridge.In such cases, it needs to be removed, which sometimes is not so easy.We will try to carry out an operation with the least losses.

How to get the drill bit from the drill chuck?

Before you pull out the drill bit from the drill, you should pay attention to the design of its cartridge.There are two types of cartridges: a key and quick.The key holder is more reliable, especially if you work in the strike mode.This cartridge is made of metal, therefore, less susceptible to mechanical damage.

disadvantage of it is that before removing the drill bit from the drill is required loosen the clamping jaws chuck with a special key.

plastic keyless chuck is usually equipped with a small drill.Replacement is done by hand.Quick-acting versions are odnomuftovymi and double box.Replacement of course, different, but not essential.Before you change the drill bit in a drill with a keyless chuck double box, you must switch your instrument in the reverse mode, with one hand to fix the bottom of the sleeve, and the other to unscrew the top.

Replacement nozzles in the cartridge odnomuftovom performed with one hand, because it is made only in the drill shaft with self-locking.

Critical situation - stuck drill

happens that a working tool in the chuck wedge, and he does not want to come out.The question arises: how to remove the drill with a drill?To get it, you need to free it of the hamstring.Next, you need to knock a hammer through a wooden nastavku cams on the cartridge until the drill shank is out of the keyless chuck.

If this does not work, remove the cartridge with a drill and soak it in gasoline, or sprinkle it with liquid WD-40 or cleaner foam.The key holder just need to drop a little machine oil.

Occasionally during operation, for example, a reinforced concrete wall impact drill drill bit stuck.When you press the trigger drill buzzing, but nothing happens.This is what happens when the drill bit goes deep into the wall and is clamped between the armature and concrete.In such cases, you must stop pressing the trigger or shake the drill with a drill.

It will not only damage the drill, part of which will remain in the wall, but also to the failure of the entire instrument.The first thing you need to get him out of the cartridge.After that, the drill is inserted into another drill and starts knocking out concrete trim around the stuck element.In this case you need to avoid hitting the wall stuck in the victim.Repulsed pieces of concrete around, you can easily remove it by hand.