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Rubber Sprue base for use in lost wax casting process, bases can be used with solid flask as well as perforated flasks.
These rubber sprue bases are the C-Type LARGE cone center designed for tree spruing,
The center hole of the round button measure 11/32" and can be used with 5/16 and 3/8" sprue wax.
The sprue base is made of natural rubber side walls are flexible for easy fit to the flask and assure a leak proof seal when investing for casting proces
SPECIFICATIONS: JETS Product # 0307-030
- Material: Natural Rubber
- Flask Diameter: 3" - 76.2mm
- Center Hole Diameter: 5/16" - 8mm
- Center Round Button Diameter: 1-15/64" - 31mm
- Weight of Sprue Base: 3.75oz - 99.2gr
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Country of Origin India
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