Twin Roller Grain Mill Twin Roller Grain Mill makes it easy to crush malted barley, unmalted barley, and brewing grains with precision. Built with stainless steel rollers and a fully adjustable gap, it delivers a consistent crush for improved mash efficiency. Use the included hand crank or attach a drill (no extra parts needed). At 500 RPM, you can mill up to 6 lbs of grain per minute. The extended shaft helps prevent bucket interference, and the 10 lb hopper keeps your brew day moving. Grain Mill Features Twin stainless steel rollers Adjustable gap setting 10 lb capacity hopper Drill-ready (500 RPM recommended) Crushes up to 6 lbs per minute Solid base fits multiple bucket sizes California Proposition 65 ⚠ Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.