Brass drifts are OK, but you can use them to the detriment of the tone and bridge. The use of an upright shank will show you if you are using to much force by splitting or leaving indents on its end. You do not need a lot of force, just a light tap with a light tool, like a small vise grips. There are tools made for leveling and lifting coils that are made of tool steel which they need to be. A hammer shank is not a proper tool for these applications. Newton
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