The most important while using the drill bit is to know when to sharpen the drill bit and how to sharpen it. The best thing is that sharpening of drill bits is very important otherwise there is a serous danger of the drill bit being permanently damage.
The reason is simple that when the drill tip is not sharpened it will not get an easy foothold into the material and more than likely break.
Also it will generate more heat because of the reason that more surface area is in contact with the material being drilled generating more friction and heat. So make sure to sharpen and use the drill bit with utmost care
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