Whip Mix Crucible Former #4081, Conical, 1-1/4" Diameter, for 1-1/4" Casting Ring

Whip Mix Crucible Former #4081 is a durable plastic dental laboratory accessory used to form the crucible and sprue base when investing wax patterns for casting. Designed for use with 1-1/4" casting rings, it creates a proper funnel-shaped opening that directs molten alloy into the mold, and its reinforced base supports clean burnout of all wax shapes. The conical former is reusable and available in several diameters as well as large and small oval shapes.