How to sharpen a bit for an electric screwdriver

How to keep a self-drilling screwdriver on the bit of an electric screwdriver so that it does not fall off

In today’s world, when performing construction or repair work, many craftsmen often prefer to use self-tapping screws and special screws instead of ordinary nails. This is due to the fact that the screwdriver is much easier and faster to drive into the wood surface than a nail. Screws are also often used when you want to fasten metal structures to a surface or among themselves. An electric screwdriver is usually used for working with self-tapping screws.

In order to quickly, and most importantly. reliably fasten a variety of elements with screws, you must first pick up a special bit, which is used in conjunction with an electric screwdriver. However, such situations often arise, especially if there is a need to fix elements of construction at an inclination, when the self-tapping screw begins to constantly slip off the bit of the power tool and fall to the floor. To prevent this from happening, there are a number of different ways to securely fasten the self-tapping screw and use it for even the most difficult jobs with a large angle of inclination of the power tool.

How to harden a bit for “screwdriver” with graphite

Graphite for this experiment can be taken from regular cell batteries that have already “run out of time. To avoid getting your hands dirty, wear gloves. Then the graphite rods need to be crushed into powder.

To harden the bit with graphite (this process is also called carburizing) you will need to make a simple device. the author uses it for engraving. The author attaches one of the clamps to the metal plate with graphite powder, and the second one to the bit itself.

Note that in this case the author considers the surface hardening method, and therefore the procedure itself takes about 5-7 minutes.

For more information on how to make the hardening of bits for an electric screwdriver with graphite and high voltage currents, as well as the result of the experiment itself you can watch the video on the website.

Bit jammed in an electric screwdriver. how to remove it without too much trouble

When working with an electric screwdriver, the bit is under the most strain. Every owner, sooner or later runs the risk of encountering such an unpleasant phenomenon as jamming the tool and blocking the bit installed in it. In the article, the master plumber will tell you how to remove the bit, if it is jammed.

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The chuck is the fixture where the drill bit or bit is fixed. Usually, standard drills are equipped with its cam type.

Most often jamming occurs due to uneven compression of the “cams”, exceeding the allowable size of the tool, as well as due to getting into the tool a variety of construction debris. Despite the apparent complexity of the incident, you can cope with a jammed bit on your own.

The first step is to try to unlock the jammed chuck of an electric screwdriver by adding lubricant to it. The ideal option here will be the lubricant WD-40, although you can use any other “liquid wrench”. It is necessary to pour means so that it will surely flow on each of “cams” of the chuck. After pouring the grease you need to wait for 10-15 minutes. Then the “cams” are carefully knocked with a suitable tool through a cloth gasket. In most cases, this is enough to solve the jamming problem. If the chuck does not loosen, you can try warming it up with a hair dryer and try again.

It also makes sense to try and use an adjustable wrench to remove the bit. After lubricating the chuck, use one wrench to squeeze the base of the chuck and the other wrench to gently rotate the top of the part.

After removing a jammed cell, it is highly recommended that the electric screwdriver be cleaned.

  • Regularly disassemble and clean the inside of the screwdriver of carbon deposits, dust and dirt;
  • Diagnose any irregularities in the operation of the screwdriver. Check the wear of the brushes so that you don’t have to replace the motor armature;
  • Do not leave the tool in a room with high humidity or in the sun. The same goes for the battery;
  • Do not hold the battery near keys, coins, or other short metal objects. When the battery accidentally touches the poles, it will short-circuit the battery. This can cause a fire;
  • At the end of the day take a clean rag and wipe the tool. The rag can be slightly dampened with water without the use of detergents;
  • Store the screwdriver in a dry, positive temperature environment. Use the case or other packaging to keep the tool free of dust.

Work with the screwdriver while observing the safety precautions and rules described in the manual. Choose the right accessories. Then the tool will last you a long time.

Sharpen the bit with your own hands

The theory is that we need to use a file to grind away the resulting “chip”.

And then grind the wings of the crosshead, to the former size. You can use the screwdriver head for dimensional control.

Now let’s proceed directly to practice. For this, let’s mount the bit in an electric screwdriver. Set the speed of the electric screwdriver to maximum rpm. We press the trigger of the electric screwdriver and file to grind the spent sharper. It is better to use a file with fine grit.

Then we put a file at an angle and grind the wings of the cross. The tip of the crosshead should not be sharp in the end, but a little blunt as it was before, because no screwdriver is sharpened to a full point.

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At the end of the sharpening, check by screwing in the screw.

You can use sandpaper instead of a file. For this we put it on the table and already all manipulations are carried out with an electric screwdriver itself. If you do not have an electric screwdriver or a drill, you can do all the manipulation by hand, or with an emery, sharpening each edge separately. And if you are very lucky, and you are the owner of an emery machine and an electric screwdriver, you can combine them, then the sharpening time will be quite minimal.

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How to harden a screwdriver bit

Bits for an electric screwdriver or screwdriver. an important component for working with self-tapping screws and screws. That’s why it’s important to work with bits made of hard alloys. However, our market is simply flooded with low-quality tools. The situation can be corrected by hardening the latter. In this article, a master plumber will tell you how to harden a bit and why you need to do it at all.

The reason for hardening screwdriver bits is that very often these days they are made of soft, low quality metal. As a result. low service life and disgusting performance.

Hardening can also replace the lack of protective coatings that are missing on most cheap bits (we are talking about coatings of tungsten, nickel, carbide).What you need for hardening

To harden a bit requires only nothing:

  • The bit itself;
  • Machine oil, can be used, poured into a tin can;
  • A piece of wire 30-40 cm;
  • A gas burner, although a gas burner will do.

This is all we need. You can use pliers instead of wire, because this is the bit’s holder when heated, but it is better. wire.How to harden the bitSo, let’s start hardening the bit:

sharpen, electric, screwdriver

That’s it, now you just need to wipe the bit off the oil and you are ready to use.

why harden the bits of an electric screwdriver

Often found on sale Chinese bits are mostly made of soft material, which greatly affects the rapid loss of shape, working condition and, in general, the service life of the bit. To avoid this, you need to harden the bits for your electric screwdriver in time.

sharpen, electric, screwdriver

In addition to hardening, you can also apply a method of magnetizing the bit in order to increase its effectiveness in hard-to-reach places. This is done with the help of a magnetizing device.

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When there is an opportunity to prepare for the purchase of bits so that, in the future, to purchase a reliable product, then, first of all, you should familiarize yourself with bits of well-known or common brands. Large companies use coatings in their bits that increase durability and bit life.

Bit tips made of chrome vanadium steel are considered the best. They have increased hardness, which increases the life of the product. It is rare, but still possible to find chromium-molybdenum steel bits in stores or buy them to order.

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Nickel or tungsten carbide are often used for coatings. Nickel is corrosion-resistant, but tungsten carbide increases the toughness of the bit.

Sharpening a chainsaw chain

Put the chainsaw on a hard surface (e. g., a block of wood or a tree stump). Then lock the chain in position. Insert the diamond tip in the chuck of the electric screwdriver, and then you can start sharpening.

Go over one side first, then the other. It is extremely important to maintain the correct sharpening angle (about 30 degrees in the horizontal plane).

Please note that the high speed of the diamond sharpener is much worse, so it is best to use an electric screwdriver.

If you sharpen with a drill, then try to set the minimum RPM. After sharpening your chain saw, it will cut like clockwork.

For more details on how to sharpen the chain of a chainsaw using an electric screwdriver and a diamond tip see this video on our website.

Advantages and disadvantages of this method

We would like to mention at once the indisputable advantages and disadvantages of this method of sharpening the chain.

  • It is difficult to keep the sharpening angle;
  • almost no sharpening of the upper edge of the tooth, while its lower part is significantly ground;
  • The file you use will quickly become obsolete;
  • there is a risk that the chain will break, because the connecting links will be ground.

As can be seen, this method has significant disadvantages. Nevertheless, with proper experience and neatness of work, all disadvantages, except for file wear, will be cancelled.

The right choice of slotted bit

The best known and most popular is PH or “Philips”. And most self-tapping screws, indeed, have slits of this standard, but it is often possible to meet a cruciform slit with additional small notches. It’s a PZ or “Posydrive” standard. It only looks like a PH, but the geometry is different. And if you screw in such a self-tapping screw with a Philips bit, it just won’t meshing properly and will constantly slip. The PZ bits are also not suitable for PH screws. You end up with a torn-off screwdriver and a dead bit.

As a rule, PZ bits are made on “large caliber” self-tapping screws, because the total contact area here is noticeably larger. That is why it is incorrect to say which Phillips standard is better. They simply have different areas of application.

And, of course, you have to remember that, in addition to the standard, the slots have a dimensional. Here it is also very important to choose a bit that fits the slot exactly. The bit must fit into the head of the self-drilling screw tightly and as far as it will go. There shouldn’t be any backlash.

Then the bits will last a long time and you’ll stop messing with the heads of the self-tapping screws.

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