To drill a hole exactly in the center, you no longer have to take a long time to aim and then fear that the drill bit will drift away at the start of drilling. Self-centering drills allow you to make a hole strictly in the center of the surface, so the work is done much faster and better. These drills are indispensable for those who assemble furniture and who have to install door hinges. The drills are made of high-speed steel, which does not lose its properties and does not dull for a long time. The set includes 4 drill bits for making holes with a diameter from 2 to 4.5 mm.