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Barley Crusher Grain Mill Review | Homebrew Academy
The simplest way it to just to use a standard corded or cordless drill like I did. You don't need any special attachments – the drill chuck will clamp right onto the mill shaft. This method has its caveats, however. The Barley Crusher recommends 300-500 RPM,but many drills operate at close to 2000 RPM.