Sharpening a drill with your own hands: appropriate devices and recommendations for work, video
Metal drills are always hardened, but products can get dull over time. Naturally, this is not a reason to throw them out. If desired, you can sharpen the drill with your own hands, using professional equipment or homemade devices.
The main types of sharpening
Experienced masters know about it, that sharpening of a drill on metal happens different depending on diameter and features of application.
- One-plane is intended for sharpening of drills with the maximum diameter to 3 mm. In the course of performance of work "cutting" of an edge is possible, so you need to be very careful. To properly sharpen the product, it should be attached to the circle and move parallel to the surface.
- The conical procedure is designed for large metal tools. In this case, the tool must be held with both hands, producing consistent sharpening.
- Proofing is performed after sharpening. Thanks to such procedure it is possible to grind a cutting edge and to eliminate even the smallest cracks..
Types of sharpening machines
To sharpen the drill with your hands correctly, it is necessary to use appropriate machines.
Such devices are divided into 2 groups.
Industrial equipment has a significant capacity. With its help you can sharpen drills with a diameter 20 mm and more. These machines are installed at large enterprises, and sharpening is carried out in a semi-automatic or automatic mode.
- Home appliances are designed for home use. They are also used in small production. Such equipment is mobile, medium power and compact size.
Recommendations for choosing a household machine
If you are interested in the question, how to sharpen a drill on metal, then be sure to buy the right machine. An inexpensive model with medium power will be suitable for home conditions. It will sharpen small drills on metal.
Naturally, when buying you need to pay attention to the noise level, as well as the design of the model. A simple machine will be the best option, after all it will be easy to pick up the necessary details for it.
It is necessary to buy similar devices only in specialized places, as here in a set existence of the technical passport is provided. More, you will be issued a warranty card.
Use of machines at home
As mentioned earlier, at home it is advisable to use household appliances. With their help it is possible to sharpen different types of drills. It is important to remember, that for some varieties will have to buy the appropriate circles.
To sharpen the drill yourself, it is necessary to prefer the machine, equipped with a universal cartridge. It allows you to clamp elements of different diameters.
The set often goes:
- elbor stakes;
- keys;
- dust;
- spare parts;
- lamp for the work area.
The most popular equipment is from Drill Doctor and GS. Such products are designed for sharpening drills with a diameter 2-13 mm and 14-34 mm. Unfortunately, this equipment does not allow you to sharpen too thin drills. For this purpose it is necessary to buy a special machine.
All equipment, designed for sharpening drills at home, has a number of advantages:
- possibility of work from the power supply network;
- high performance;
- ease of use;
- functionality;
- sharpening accuracy;
- affordable price;
- compact dimensions;
- light weight;
- convenient management system, thanks to which it is possible to adjust intensity of sharpening and its speed.
Homemade devices for sharpening
If you do not have a suitable machine, then you can sharpen with other devices. We are talking about electric drills or homemade equipment, created according to the drawing. It is best to prefer the second option, otherwise you can ruin many drills, before mastering the correct sharpening.
You can even create a suitable device with your own hands from wood. So, on a horizontal surface the bar with apertures is fixed, corresponding to the diameter of the drill. These holes are made at a slight angle, to get the right sharpening angle.
Some craftsmen prefer electric drills, equipped with appropriate nozzles. Naturally, the range of such elements is small, which complicates sharpening with your own hands. Usually, complete with nozzles is a stone and a leash. If you plan to sharpen drills, using a specific drill, the leash should be shortened immediately.
If desired, you can make a similar drill bit, guided by recommendations, data in the relevant video. Such devices must be equipped with a mount for fixing the drill.
Features of the sharpening process
If you first decide to sharpen the part with your own hands, do the work in strict sequence.
- First of all process a back surface. So, the drill is pressed tightly and constantly monitored, so that the sharpening angle remains the same. As a result of processing the tip of a drill will remind a correct cone.
- Then comes the turn of the cutting part.
- The last stage involves finishing the rear surface. It is necessary to make sure of that, that the size of the jumper is not more 0,4 mm. Naturally, for a large drill on metal, this parameter should be slightly larger.
If something went wrong the first time, do not despair. It is best to start practicing with tools, which are unlikely to be needed. The main thing is to learn to press and maintain the angle correctly. It is necessary to take into account that fact, that the side parts of the drill are responsible for drilling, not a tip. In accordance, the edges must be sharpened.
It's important to remember that, that in the process of sharpening small particles are formed. Due to heating, they fly in the form of sparks. It is for this reason that safety precautions must be observed. We are talking about the use of goggles and gloves. Also when sharpening you should make sure, that the drill is securely fixed. Otherwise, it may accidentally break out of your hands.
Recommendations for using the machine
If you decide to use a suitable machine for sharpening, be sure to prepare the workplace. In particular, it's about good lighting. You should also wear protective gloves and goggles.
First of all it is necessary to be defined with a necessary angle of sharpening.
- It is important to arrange so, so that the grinding wheel is on the right.
- Centering should be performed. To do this, take the thumb and forefinger of the work surface, and the other hand holds the tail edge.
- The drill bit on the metal must be rotated as follows, so that the cutting edge is parallel.
- An important point is the removal of jags.
- All movements should be performed in a certain sequence. So, the left hand is moved to the left down, and move the right clockwise.
To properly sharpen the drill with your hands, it is necessary to use the appropriate device. It can be a household or industrial machine, as well as an electric drill with a special nozzle. If you have not tried to sharpen a drill before, to get started, check out the relevant video.
