Whip Mix Crucible Former #4179, Conical, 1-1/2" Diameter, for 1-1/2" Casting Ring, Single

Whip Mix Crucible Former #4179 is a durable plastic dental laboratory accessory used to form the crucible and sprue base during investment of wax patterns, creating a funnel-shaped opening that directs molten alloy into the mold during casting. Designed for use with 1-1/2" casting rings, it features a conical shape that supports clean burnout of wax shapes and helps prevent porosity. Sold as a single former.