Rubber Sprue Base for 3" Cylinders Tree C-Style Jewelry Lost Wax Casting Flask

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Rubber Sprue Base for 3" Cylinders Tree C-Style Features

• Material: Natural Rubbe

• Cylinders Diameter: 3”

• Hole Dia. 5/16”

• The round bottom Holds: 5/16" (8 mm) sprue

• Used for jewelry making, casting, investing, mold making, silicone or rubber molds and more

About Rubber Sprue Base For 3" Cylinders Tree C-Style

PRODUCT DESCRIPTION Sprue bases listed are for solid and perforated flasks. These rubber sprue bases are designed for tree spruing with multiple pieces on each tree. The round button holds a 5/16" (8 mm) sprue. Used for solid and perforated flasks. Sprue bases assure a leak proof seal when casting. Made of natural rubber. PRODUCT SPECIFICATIONS .- Material: Natural Rubber .- Cylinders Diameter: 3” .- Hole Dia. 5/16” .- The round bottom Holds: 5/16" (8 mm) sprue.- Used for jewelry making, casting, investing, mold making, silicone or rubber molds and more