Each host has a drill, even if he is not engaged in serious construction work. The crossover of the cornice or shelf is considered an ordinary thing, to execute which you need to drill the hole first. Make it a blunt tool is quite difficult. The drill device is designed for sharpening during operation, which will undoubtedly be learned.
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For sharpening the tool, it will take sharpened with the electric motor. The most commonly used conical drill having a pair of cutting edges located at a certain angle, the value of which depends on the properties of the material being processed. At home, a universal angle of 120 ° is usually used.
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During operation, the drill should be held in two places: one hand for the tail part, and the second is closer to the edge. The cutting edge of the pen is pressed against sandpaper and smooth movements, slightly shaking, the surface in the form of a cone is output. At the same time it is necessary to maintain factory angles and surfaces.
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Next, the same is repeated for another pen. During sharpening on the tip of the drill, a jumper will be obtained, its width should be up to 1 mm for a small size and 1-2 mm for twisted with a diameter of more than 8 mm. And the length of both cutting edges should be the same.
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The sharpening drill is a difficult process, it is necessary for its execution concentration and attentiveness. The first time is difficult to achieve a positive result. Significant relief is the use of various devices, as well as templates for controlling the angle of sharpening.
Homemade craftsmen who collapsed sufficient experience can sharpen the drill "on the eyes". A good helper in this case will be the study of a visual video lesson.
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