Drill bits can be divided into many types according to the materials that they work on. Such as drill bit for wood, drill bit for rocks, drill bit for plastics and so on. In his article, the drill bit for steel is mainly discussed. Choose the best drill bit for steel with high quality will improve the efficiency of your drilling work dramatically. In the drill process, the drill bits will be frayed gradually. So if you want to keep its sharpness, you need to grind the blade part of the drill frequently. However, it is a time consuming task to grind the drill bit. And there is a big chance to damage the drill bit. So, it is highly recommended you to buy the best drill bit for steel. The drill bit with high quality is not easy to wear, as a result, the workers do not need to grind it frequently. It reduces the maintenance time and the chance to destroy the drill bit. Though the best drill bit is expensive than that with lower quality, you will pay more money to afford them. But during your work, the extra money you pay will be paid back through the labor cost you saved.
It is much harder to drill through metal than to drill though wood. Generally, there are two kinds of drill bit specially used to drill holes into steel. The first kind steel drill bit is regular High Speed Steel drill bit. They can drill holes into most kinds of steel. The price of High Speed Steel drill bit which is not very expensive. But if you want to drill holes into stainless steel, the regular High Speed Steel Bit will be not suitable. The second kind is your best choice. The main material of this best drill bit for steel is also High Speed Steel. What is different from the first kind is that this kind of drill bit is coated in Titanium Aluminium Nitride. It is much harder than the first one, and can be used to drill through any metal. It has a perfect corrosion-resistant performance. But they will be much expensive than the first kind.
Here is a tip for you to yield the greatest role of your drill bit. Before you start to drill through metal, drop a few of oil on the point where you will do your drilling work. The first role of the oil drops is to lubricate the drill bit. And the second is to exhaust the heat produced during drilling. If these heat is not dissipated in time, it will very likely dull the drill bit. Another way to reduce the chance of dulling the drill bit is to drill slowly. Then it can prevent the drill bit from overheating. Even the best drill bit for steel can be damaged if you use it carelessly.