Surely everyone will enjoy a drill and knows that during the operation the drill blunts. This largely complicates the workflow, and a drill bit just becomes unnecessary over time. Of course, the best solution is simply to go to the store and buy a new drill, but you can hone his own home.
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If we talk about the drills on a tree, here, in rare cases, a grinding, it can be used long term. But on the metal drill should be sharpened always, otherwise the work is much more complicated.
If the drill is already blunt, at the beginning of the work usually I hear a creak. And it is worth to know that it is not sharpened drill produces much more heat and thus wear out much faster.
At the moment, sharpening can be practiced as a special equipment, and the use of certain tools. Of course, if there is such a possibility, it is best to give preference to the equipment as possible to obtain high quality results quickly enough and difficulties will arise. But often, the master cost when using a conventional grinding machine and stone.
It is important to know what kind of sharpening depends on the shape you want to give the rear surface of the drill. That is, it can be:
- Odnoploskostnaya.
- Two-plane.
- Conical.
- Cylindrical.
- Screw.
Monoplanar sharpening feature lies in the fact that the rear surface appears as only one plane. Rear angle usually is 30 degrees. Sharpening is performed quite simply, should only bring cutting portion parallel to the circle, the drill must be kept in place and do not move. But in this situation there is a risk that they will crumble drill cutting edge, and it is an obvious drawback. And this method is suitable for situations where the drill diameter of no more than 3 millimeters.
If the drill more than 3 millimeters in diameter, it is best to choose a conical sharpening method. fulfill all the right problematic, but it is still possible without special skills. Under this option, we should take the working part of the drill bit with one hand, and the second - a ponytail. When rotating the drill cutting portion must be clamped to the end face of stone, it is pressed and also the rear part of the drill. Thus it is necessary to rock drill and thus on the brink of a fountain create a tapered surface. It is important not to take the bit in the process. For the second part of the same process.
