Information about standard paper drills
Paper drills in the standard version are made of high-quality steel (HSS). These hollow drills are ground from the inside at the bottom. Very suitable for offset and copy paper, but also work well with other types of paper, especially with regular use of waxed paper. The paper drills may become less sharp over time. A specialized company can sharpen these, but with a specially shaped diamond file and some skill this can also be done yourself.