Flashman READ MY POST VERY IMPORTANT! I have shown many here this grinder for grinding your pucks.
The grinder is a CERAMIC burr coffee grinder. The reason we use CERAMIC burr hand grinder is they work,
but most important there SAFE. CERAMIC burrs do not make sparks. This is the one most here use.
https://www.amazon.com/Manual-Grinde...GS8MMCZ2VDGJ1Y
Please do not try & improvise on this. You now have a explosive & you have not listened to us in the past on some
of the advice you were given, only to come back admitting so. That's one reason this venture has taken you this long.
But my friend we want you safe. The above grinder will last for ever & is safe.
Hope I have helped, Fly