Approximately 1/2" diameter, our Lead Balls are hardened (using a Lead-Antimony alloy) and are completely non-sparking. This heavy & highly efficient grinding media is perfect for use in any table top Ball Mill or increase the grinding efficiency of your existing mill by adding additional balls.
If you're going to be milling Black Powder (Gunpowder), only use Lead-Antimony balls or Bismuth,
as they are completely non-sparking.
Package of 100.