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It is difficult to calculate this data due to the different materials of the processed materials and the different mechanical parameters and techniques of the drill, and it is generally said that the drill bit should be replaced or ground when the drilling efficiency is significantly reduced in use.
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Electric drills can be divided into three categories: hand drills, percussion drills, and hammer drills. You need to choose according to your actual needs and the scope of their respective use.
1. Hammer drill: It can produce a strong impact force, accompanied by the effect of drilling. Strength can split stones into gold. It can drill holes in a variety of hard materials and has the widest range of applications.
2. Hand drill:
Some hand drills can be changed into special tools according to the use, and there are many uses and models. The power is minimal, and the range of use is limited to drilling wood and being an electric taper.
3. Percussion drill.
It can be used for natural stone or concrete, but the impact force is far less than that of an electric hammer, and it can be used as an ordinary electric drill. There are two kinds of impact mechanisms of impact drills: canine type and ball type. The impact effect is achieved by using the gears on the inner shaft to jump out of each other.
Normally, the replacement method of the above three electric drills is the same, but the drill chuck on their drill bit is divided into self-tightening drill chuck and hand-tight drill chuck, when replacing the drill bit with the self-tightening drill chuck, we need to hold the drill chuck with one hand, while starting the reverse switch of the electric drill, so that the original drill bit is simply replaced, and the drill bit is up in the same way, the most important thing is that don't forget to call back the forward and negative switches, if it is a hand-tight drill chuck, It can be replaced by opening it with the built-in drill chuck key.
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The method of changing the drill bit of the electric drill is as follows:1. Disconnect the power supply of the hand drill.
Unplug the power cord of the flashlight drill from the socket so that it disconnects from the power supply.
2. Rotate the hand drill hoist mouth.
Wear gloves on your hands, hold the hand drill tightly and pinch the mouth of the hand drill hoist, and rotate it vigorously to expose the hole where the drill bit is installed.
3. Twist the teeth with the configured key.
If there are teeth at the front end of the hand drill, you can twist the teeth with a specially configured key.
4. Install the replaced drill bit.
Place the drill bit to be installed on the hole at the front of the hand drill and rotate it until the drill bit is jammed.
5. Adjust the drill bit and lock it.
Adjust the position of the drill bit into the hole, and tighten and lock the drill bit with the key.
6. Check whether the installation is stable.
Plug the power cord of the hand drill into the socket to power on the hand drill, and check whether the drill bit of the hand drill is installed.
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There are a few things to keep in mind when replacing an electric drill bit:
1.Safe Operation: Before changing the drill bit, make sure the drill is turned off and unplugged to prevent accidental opening and high shock.
2.Choose the right drill bit for the synthetic module: Choose the right drill bit type and size for the job. Different types of drill bits are suitable for different materials, such as wood, metal, or tile. Make sure that the drill bit you choose is suitable for the material you want to drill.
3.Drill bit size: Choose the correct size drill bit to ensure the accuracy and stability of the drilling. Using a drill bit that is too large or too small can lead to undesirable results or damage to the material.
4.Drill bit fixation: Depending on the type of electric drill, the drill bit is fixed in an appropriate way. Some drills are equipped with a key or wrench that can be used to hold the drill bit. Make sure the drill bit is securely installed in the drill to prevent it from loosening or falling off.
5.Check the condition of the drill bit: Before installing the drill bit, check the drill bit for damage or wear. If the drill bit is visibly worn or damaged, it is recommended to replace it with a new drill bit to ensure safety and efficiency.
6.Follow the instructions for use: Each drill brand and model may have specifications and requirements that are not the same as the source. Please read the drill's user manual or instructions for use carefully and follow the correct operating procedures and safety precautions.
When replacing the drill bit of an electric drill, be sure to handle it with care and ensure your own safety. If you are unsure about the operation, it is best to seek professional help or consult the manufacturer.
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1. First of all, prepare the electric drill, drill bit and professional key of the electric drill, as shown by the arrow in the figure below.
2. Then turn the electric drill upside down, unscrew the swivel ring with teeth below, and the occlusal mouth on the drill bit will be released, as shown in the arrow in the figure below.
3. Then after the bite mouth is released to the appropriate size, then insert the drill bit into the bite mouth, and pay attention to the position where the drill bit is placed in the middle of the bite column, as shown in the red orange arrow in the figure below.
4. Next, if the replaced drill bit is relatively small, the three occlusal columns of the electric drill will be slowly clamped with the continuous rotation of the tooth ring and will be tightly stretched out, as shown in the arrow 2 in the figure below the sock base.
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Generally speaking, the way to change the drill bit of the electric drill and the percussion drill is the same, just because the drill chuck of the drill bit on the drill bit is divided into self-tightening drill chuck and hand-tight drill chuck
And use the same method to put the drill bit up, after the bite mouth is loosened to the size suitable for the drill bit, you can insert the drill bit straight in, pay attention to put it in the middle of the three bite columns, as shown in the figure below, and then turn the swivel ring that has just been released in reverse, so that it bites the drill bit rod that has just been put in.
If you want to remove it, then you have to use this drill key to loosen the hole, so that you can turn the toothed ring and loosen the bite.
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The steps are as follows: 1. When you are ready to change the drill bit for the electric drill, take out the electric drill first, replace the installed drill bit, and have an electric drill key for this electric drill, as indicated by arrow 2 in the figure below.
2. Put this electric drill upside down, hold the swivel ring with teeth below with your hand, and loosen it, as you twist, the bite on the drill bit will be loosened, as shown in the following figure.
3. After the occlusal mouth is loosened to the size suitable for the drill bit, you can insert the drill bit straight into it, pay attention to the middle of the three occlusal columns, as shown in the figure below, and then turn the swivel ring that has just been released in reverse to let it bite the drill bit rod that has just been put in.
4. If the drill bit put in is a relatively small one, then the three occlusal columns of the electric drill will be slowly clamped with rotation, and then stretched out without teasing out, which is normal, as indicated by arrow 2 in the figure below.
5. When you first rotate the toothed ring directly by hand, clamp the drill bit, and then take out the drill key, on the steel ring on the electric drill, there will be several small holes, first insert the drill key into one of them, you can turn the key, tighten it tighter, and then insert it into the hole in turn and tighten it in this way.
6. When each hole is tightened with an electric drill key, then the electric drill bit will be replaced with Ancha lead and installed, if you want to remove it, then you must first use this electric drill key to loosen the hole, so that you can rotate the toothed ring and loosen the occlusal column.
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