Every owner wants only the best, most reliable and time-tested tool at his disposal. In this regard, many citizens are prone to extremes when choosing such a really important thing in the household as drills. Is it worth it to overpay and give exorbitant prices for nozzles for drilling tools? Let's deal with the most popular misconceptions about this.
1. Cobalt drills are best
There is an opinion that HSS-Co cobalt drills are the best in the world. Such statements are not without meaning, although they are only half the truth. The fact is that there are even more reliable and hardy drills. We are talking about nozzles with the addition of tungsten and molybdenum. But such industrial drills cost a lot of money: more than 1 thousand rubles apiece. Drills with cobalt content are very different and give a 20-40% increase in drilling speed. Whether it is worth almost a triple overpayment is up to everyone to decide for themselves.
2. Titanium drills are the best
Drumroll: There are no titanium drills. There are ordinary steel drills with titanium coating. As a rule, they are made of high speed steel "HSS", after which they are coated with titanium oxide "TiN". You can recognize such drills by their characteristic yellowish color. Because of this feature, titanium drills are very fond of forging, making a fake yellow “plaque”. They have their advantages, but they are certainly not the best in the world, but they cost two to three times more than usual.
3. Titanium bits last longer and drill faster
Titanium drills do not possess any magical properties such as increased service life and increased drilling speed. It is important to understand that these are "special" drills, which are mostly needed for working on machines or if it is necessary to use coolant in drilling. All that titanium coating does is to protect the drill from overheating. And the most ironic thing is that over time, the titanium oxide coating wears off, after which the HSS-TiN becomes a regular steel drill.
>>>>Ideas for life | NOVATE.RU<<<<
4. Drills from sets are worse than drills from blister packs
Another half-truth. It all depends on what set the master buys. If you take a whole set for the price of one decent drill, then you don’t need to be surprised that they are almost made of plasticine! However, if you take an expensive set with high-quality drills, then they will not differ from drills from single blisters in any way. Sets in the price category from 3 thousand rubles can be safely taken. If they are not from second-order manufacturers.
5. Cheap drills will always be bad
Let every owner ask himself: why does he need expensive drills to work at home or in the country? What is he going to do with them and how often. Buying expensive drills in order to take up a drill one and a half times a year is not the most rational idea. There are many manufacturers who produce both individual drills and entire sets in the budget price category with very acceptable characteristics. If you don’t drill every day to the delight of all your neighbors, then there is no need for professional drills.
If you want to know even more interesting things, then you should read about 5 useful tricks with a screwdriver, which will be useful to home craftsmen.
Source: https://novate.ru/blogs/221221/61627/