Hole punch in the leather

If you need to make holes in the leather for stitching or installing buttons and other parts, you need a punch hole in the leather. They come in different sizes and shapes. The holes in the leather should be pierced from the bottom with something to prevent damage to the edge of the punch. It is sharp and can be blunted about a solid object, such as metal. I use cork and wood. Beat the hammer confident but not with all the force. Calculate the impact in such a way as to penetrate only the leather. Over time, the hand will scrape and the blows will be accurate and the way you want.
I punch holes I bought for aliexpress at 0.70 cents. On the photo, the size of piercing pins is 1.0mm, 1.5mm and 2.0mm.