Due to the regular use of drills, there is a need for frequent sharpening. The modern market offers various devices for this purpose. But few people know that you can sharpen a drill using a regular electric drill. This is achieved through various attachments and attachments, which allow you to turn a drilling tool into a multifunctional device. One of these devices is a drill attachment for sharpening drills, which allows, in the absence of an emery machine and a wheel, to restore the geometry of the tool and bring it back to working condition.
Design features and operating principle of the device
The functional attachment for sharpening drills has a specific design made of a plastic case, the inside of which is equipped with a rotating sanding wheel. It has a special shape that forms the required sharpening angles on the working parts of cutting tools. The sanding wheel of the nozzle is driven by the rotation of the electric drill shaft, to which it is connected by a special coupling.
Many modern models of drill grinding wheels are equipped with end caps on the body, which have several holes with different diameters (from 3.5-10 mm). The working tool that needs to be sharpened is inserted into them at a certain angle. The correct position of the tool, the surface being sharpened and the angle is ensured by the design of the attachment itself.
Sharpening of drilling tools using an attachment is carried out according to the following principles:
- devices, the cutting part of which needs sharpening, are installed in holes of the corresponding diameter on the nozzle;
- the electric drill is activated, which contributes to the rotation of the emery wheel. This way, only one side of the tool is sharpened;
- the drill stops, the drill is turned 180 degrees and the second cutting edge is sharpened using a similar principle.
The above procedure should be performed until the cutting edge of the device meets the required parameters.
A similar sharpener for drill bits for a drill may also have a simpler design, which does not include a cover and holes that act as a jig. Using such attachments is quite difficult; they are inconvenient, since you have to hold the workpiece being sharpened in the correct position, and you also need to maintain the appropriate angles on the cutting edge.
You can make a device for an electric drill used for sharpening drills with your own hands, which is quite common among many home craftsmen. The structure of the design of a homemade attachment for sharpening drills is almost identical to the structure of any serial model. To manufacture it, it is necessary to provide the following structural elements:
- presence of a housing for the device. It is best that it be metal;
- the presence of a mounting ring or coupling that allows for a torque connection between the drill and the working part of the nozzle;
- emery wheel, its working surface should have a conical shape. This can be done through a turning operation on a machine;
- availability of fasteners for the grinding wheel;
- the presence of a top cover, which will act as a gearbox, ensuring a convenient and correct position of the tool during the sharpening process.
In addition to drill attachments that are used for sharpening drills, there are devices on the modern market that allow you to restore geometric parameters on other types of cutting tools. These include:
- devices that sharpen circular saws;
- a drill attachment used for sharpening knife blades, cutting elements of a plane, chisel and other similar devices.
The best sharpeners for household drills from AliExpress
Household models of sharpeners are produced in compact sizes. All models in this category are portable. Their design is based on a powerful frame and an electric motor that rotates an axis with an emery wheel. All this is covered with a protective casing for safe use. Many models have various attachments that allow you to sharpen not only drills, but also other cutting tools. The recommended operating time for household sharpeners is no more than 2 hours a day. Power is usually in the range of 150–250 W.
Selection and types of sharpening attachments
For each model of electric drill there is a certain form of sharpening attachment . According to manufacturers' recommendations, when choosing a product, you should take into account the neck size of suitable drills; in addition, it is important to know the long size of the turbine adapter. Without these values, it is impossible to choose a nozzle that will fit perfectly. If the choice was made incorrectly, this will lead to it dangling and not being securely fastened to the instrument. Working with such a nozzle is quite dangerous and inconvenient, since you need to hold it with your hands while working. This mainly applies to models that belong to the economy class.
When choosing, you should pay attention to such parameters as:
- number of sockets for sharpening drills;
- possibility of sharpening at an angle of 118 degrees;
- The kit includes an additional sharpening stone.
Speaking about which drill attachment is worth buying, according to the reviews of most craftsmen, we can note such brands of devices as Bosch, KWB 5032 00, Leroy Merlin, etc. Moreover, some of them can be used not only for drills, but also knives .
Top 5. QilongPower EWT-U3
Rating (2021): 4.60
8 reviews taken into account from resources: AliExpress
Full set The machine is suitable for sharpening drills, cutters and other tools thanks to a large set of collets and bowls made of two different materials.
- Characteristics
Average price: 38831 rub.
- Power: 99 W
- Rotation speed: 5200 rpm
- Drill diameter: up to 16 mm
- Sharpening angle: 0–180°
- Weight: 45 kg
With such a machine, even a non-professional can control the drill sharpening process. It is the best at automating processes, so it will be useful in production. The machine can sharpen drills, cutters and turning tools; for this purpose, special accessories are included in the delivery package. The device was equipped with functional lighting for ease of operation and was equipped with collets of various diameters, diamond and corundum sharpening bowls. The design of the machine includes a universal dividing head, which facilitates adjustment and provides fixation of tools in 24 positions. Reviews advise lubricating the adjusting screws before starting work, otherwise they may jam.
Advantages and disadvantages
- Impressive equipment
- Quite bright backlight
- 24 options for fixing instruments
- Very fast delivery
- Not the most accurate sharpening
- Adjustment screws jam
- Weighs twice as much as analogues from AliExpress
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About the advantages and disadvantages of nozzles
Among the advantages, it is worth noting the efficiency indicators of such a grindstone mounted on a drill. It is important to remember that these tools are not intended for intensive use. Without placing excessively high demands on these devices, we can say that they are quite effective in fulfilling their intended purpose. In other words, for home workshops, this is an ideal tool that will allow drills to be sharpened quickly and correctly at any time.
In addition, such products have a low cost, which is a definite advantage when purchasing them. They are easy to operate, and their use does not require any specific skills in sharpening cutting or drilling tools.
According to the experts, in addition to its advantages, the device also has disadvantages:
- Most often, attachments perform editing of the cutting part of a “squat” tool, rather than sharpening it. When using the device for full sharpening of “dead” tools, the emery wheel will last a relatively short time;
- when used, reliable fixation on the power tool is not ensured;
- often the sharpening angles are standard in the device and cannot be changed;
- there is a possibility of the rotating chuck getting caught on the internal surfaces of the adapter coupling. To exclude this, you should select the appropriate diameters and try on the device during the purchase process;
- inconvenience of holding and turning on the drill while working with one hand, and directing the drill with the other. To ensure greater comfort, it is recommended to use brackets that allow you to fix the power tool.
To sum up the advantages and disadvantages of drill attachments, we can note that they are practical when used for work in a home workshop; they are not suitable for production tasks.
Top 4. Leiming S1D-DW01-56
Rating (2021): 4.70
53 reviews taken into account from resources: AliExpress
Silent operation The noise level during operation does not exceed 68 dB, this is the lowest figure on AliExpress. There is also virtually no vibration.
- Characteristics
Average price: 2243 rub.
- Power: 96 W
- Noise level: 68 dB
- Rotation speed: 1350 rpm
- Grinding disc diameter: 56 mm
- Suitable for drill bits: 3-13mm
Leiming S1D-DW01-56 is another multifunctional sharpener from AliExpress. It is suitable for any drills, knives and scissors. The device weighs just over one and a half kilograms, so you can even take it with you to work. The seller offers two configuration options – a budget option and a set with a spare grinding disc. Reviews note that the case seems flimsy, although the accessories are made of durable materials and should last a long time. There is also no angle adjustment function, which means you have to spend more time sharpening. In general, buyers were satisfied with the quality and packaging of the goods, but there were complaints about the delivery service. Often you have to wait for a parcel for more than a month.
Advantages and disadvantages
- Minimum noise level
- Reliable and high-quality accessories
- Good packing
- Kit with spare disk
- Flimsy plastic body
- No sharpening angle adjustment
- Long delivery
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Using a sharpening stand
Due to the inconvenience of sharpening a drill in weight using an attachment, some craftsmen prefer a special stand, which allows the tool to be processed as symmetrically as possible on each surface of the cutting edge. This attachment for sharpening drills consists of the following elements:
- durable metal case;
- a mounting ring that connects the stand and the neck of the electric drill;
- top panel, which acts as a guide when sharpening;
- grinding head.
The grinding head is the most important and difficult to operate.
The part has a cylindrical shape, which is secured with a nut, and an emery coating is applied to its surface. Such grinding heads can have a different cone, which forms the sharpening angle of the drill. Depending on this, the appropriate grinding head is selected, and it is also important to take into account the characteristics of the abrasive coating, which also affects the tool.
For example, the most suitable angle for:
- aluminum products – 140°;
- cast iron – 180°;
- steel (low carbon) – 130°.
Depending on the brands of materials, individual sharpening angles are selected. Not everyone can purchase or make such parts themselves; therefore, you can change the design of the drill stand.
Ordinary cylindrical circles are also allowed for use, the top panel of which can be provided with guide holes. They should be provided with the level of inclination necessary for normal sharpening.
Top 3. POSENPRO PPMS65
Rating (2021): 4.80
25 reviews taken into account from resources: AliExpress
Powerful engine Despite the average power, the engine of the device performs up to 6700 rpm at idle. This is the maximum result among sharpeners from AliExpress.
- Characteristics
Average price: 2286 rub.
- Power: 65 W
- Noise level: 80 dB
- Rotation speed: 6700 rpm
- Grinding disc diameter: 51mm
- Suitable for drill bits: 3-13mm, 6-51mm
POSENPRO PPMS65 is ideal for those who have previously only used mechanical sharpeners. It is equipped with a powerful motor that will allow you to feel the difference between manual and electric sharpening of drills. Unfortunately, because of this, the device does not operate as quietly as we would like, although the noise level is not critical. Reviews on AliExpress say that the sharpener takes some getting used to, but it is definitely worth attention. Thanks to rubber feet, the equipment stands firmly on the surface, and the adjustable sharpening angle (15–50°) will allow you to return the sharpness to any tools. Buyers consider the main disadvantage of this model to be the low build quality: the plastic is thin and there are noticeable gaps.
Advantages and disadvantages
- Non-slip feet for better stability
- Convenient sharpening angle adjustment
- Impressive engine speed
- Suitable for any instrument
- Noise during sharpening
- Poor workmanship
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Conclusion
A drill attachment for sharpening drill bits is a very useful purchase if you often work with drilling tools. Thanks to it, you can significantly save money on the services of service centers. It is only important to calculate the capabilities of such a product so as not to overload it so that it does not fail. Naturally, a drill, even with such a device, cannot completely replace a sharpening machine, but if you need to sharpen a drill at home, it will allow you to complete everyday tasks without difficulty.
Top 1. HIMOSKWA ZFY16BK
Rating (2021): 4.90
160 reviews taken into account from resources: AliExpress
Best sharpening speed The sharpener returns sharpness to drills of any diameter in just a few minutes. She works quickly and accurately.
- Characteristics
Average price: 2273 rub.
- Power: 96 W
- Noise level: 75.3–88.3 dB
- Rotation speed: 1350 rpm
- Grinding disc diameter: 78 mm
- Suitable for drill bits: 3-12mm
HIMOSKWA ZFY16BK is the best of the inexpensive models for processing metal drills. The power is small, but the sharpener does its job perfectly. It works quietly, without unnecessary vibrations. The equipment handles drills with a diameter of up to 8 mm very quickly. But for a diameter of 10 mm or more it takes a lot of time - sharpening takes up to 7 minutes. The low power of the device affects it. The design of the product is as simple as possible. The assembly is of high quality - the plastic is not flimsy, there are no gaps in the body. An important nuance - it is not recommended to use a sharpener on broken drills, as you can damage the geometry of the sharpening stone. The seller of the product also warns about this on the AliExpress page.
Advantages and disadvantages
- Great for sharpening metal drill bits
- Quiet operation without vibration
- High quality workmanship
- Quick sharpening of small drills
- Rubber feet for better grip
- Low power
- Cannot be used for broken drills
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See also:
- 10 best drill manufacturers
to the beginning of the rating
Top 2. Vunson Drill Bits Grinder
Rating (2021): 4.90
16 reviews taken into account from resources: AliExpress
Minimum weight The machine weighs less than 10 kg, its dimensions are 350*200*220 mm. Due to its compactness, the sharpener takes up little space and is suitable for use at home and in the workplace.
- Characteristics
Average price: RUB 12,784.
- Power: 120W
- Rotation speed: 5000 rpm
- Drill diameter: 2–13 mm
- Sharpening angle: 90–145°
- Weight: 9.5 kg
This machine is designed for sharpening carbide and solid cutting tools. All processes are automated, which greatly simplifies the work. With AliExpress the machine comes with a collet chuck, which comes with a set of collets with different sizes. The model has the ability to change the sharpening angle of the drills, the adjustment is convenient. There is a scale on the body of the device that simplifies this process. The security issue here is also well thought out. But there is one difficulty - it’s not possible to align the drill the first time. The markings on the diameter adjustment knob are offset, so the size has to be selected experimentally. This is the only drawback mentioned in the reviews.
Advantages and disadvantages
- Excellent sharpening quality
- Process automation
- Scale for convenient adjustment of the sharpening angle
- Protection against accidental damage
- Compact and light weight
- Offset markings on handle
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See also:
- 10 best sharpening machines
Top 4. JoyFay MR-26A
Rating (2021): 4.75
5 reviews from resources taken into account: AliExpress
Maximum power The stated power of this model is 450 W, which is significantly more than other household and industrial drill sharpeners.
- Characteristics
Average price: 41047 rub.
- Power: 450 W
- Rotation speed: 4800 rpm
- Drill diameter: 8–32 mm, 13–26 mm
- Sharpening angle: 85–140°
- Weight: 27 kg
This professional DC sharpening machine is used to restore the original geometry of the drill rake, back angle, and bridge. All functions are implemented very well. The sharpener is reliable and has a long service life. It can be used not only by professionals, but also by people without experience working with such equipment. The price of the machine is quite significant, but it is justified by its high functionality. The device pays for itself quickly. The security system here is one of the best - all protective covers have reliable fastenings. The sharpener is convenient to use. To get started, simply connect the machine to the network.
Advantages and disadvantages
- Excellent reliability and safety
- High power
- Controlled sharpening angle
- Can be used for any drills
- Easy control and quick connection
- Very high price
- There is no point in buying for home use
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