In this video, I demonstrate how to sharpen a conventional twist drill so that it is suitable for drilling into thin materials without pre-drilling. Thanks to my special sharpening technique, the drilled hole will be perfectly round, unlike traditional drilling methods, which often result in polygonal holes. This method is especially useful for thin materials, where the drill bit tends to slip or leave unwanted burrs. Watch the video to learn how to achieve the best results with this simple yet effective sharpening trick!
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