Hardin HD-234 CR2kg 2 Kg Crucible for HD-234SS Manufactured, Tried, and Tested Specifically for the Hardin-234 Melting Furnace 2 Kilogram High Purity Graphite Crucible To Melt Gold, Silver, Copper at Extreme Temperatures Slip Proof Recessed Groove For Tongs to Easily Grab Pour Groove for Easy Molten Metal Transfer