Sharpen drill for metal with his own hands - the instruction and video

drills are known tupyatsya over time.Many of them simply throw out and buy new ones.However, to truly master's approach to any business and can be blunt to drill a second life.And well-sharpened drill for metal, and can be at home, without the use of any "high tech."

House, for household purposes, drill small diameter are mainly used, as a rule, no more than 16 mm.That's sharpening of small drill bits and will talk.The best way - to handle the drill grinding wheel.Every self-respecting host in the garage is "winepress."If not, the second option - to fix stationary electric drill, sander (that is available).We need one - to get a rotating grindstone (disk).

as a "cooler" water can be used, the engine oil.If the drill is not periodically immersed in the coolant, it is not overheated and can subsequently withstand the necessary load and temperature conditions during drilling.In other words, this drill will not serve long.

process of sharpening drill

sharpening drills performed sequentially - first processed back surface.This should be done carefully, in several stages.The drill should be firmly pressed to the grinding wheel surface.It is necessary to pay attention to the sharpening angle, it should be unchanged.As a result, regular cone is supposed to be the back surface treatment, if you look at the side of the tip of the drill.

then processes the cutting part of the drill.It is also necessary to strictly maintain the angle.Only after this operation is performed has the final lapping the rear surface.Care should be barred, it is located on the tip of the drill.With proper handling drill its size should not exceed 0.4 mm for drill diameters from 8 mm or less.If a larger drill bit, the size of such a bridge can be in the range from 1 mm to half.

Do not get discouraged if you just do not get - this work is given only with time.The best thing before you begin sharpening required drill, practice on some other.In the farm there is a certain number of pieces that have long been "out of order" and simply lying among trash.

main thing - to get the drill processing skills emery feel like to press as "hold" angle.If sharpened test "exhibit" inserted into a drill and start drilling, it immediately becomes clear what the error was made during sharpening.

should be borne in mind that drilling tip does not produce itself and the sides of the drill.Many make the mistake of trying to pinpoint only one end of the drill, not paying attention to the side edges.There are several different method, is more complex for sharpening drills pobeditovym tip.

Video from the master - sharpening drills: