2-1/2" 60 MM Diameter Rubber Round-Button (C-Style) Sprue Base Vacuum Centrifugal Lost Wax Casting Jewelry Making Tool
Special Features
- Holds 5/16 - 3/8" Tree Tightly in place
- Leak-proof and made from tough, flexible, natural rubber materials
- Measures 2-1/2" in diameter
- Fits both regular and perforated flasks
- Ideal for holding the sprue rod in the casting flask while pouring in the investment
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