21.783 = Rubber Button Sprue Base 3-1/2''
$5.95
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| Article number: | 21.783 = 3-1/2'' |
| Availability: | In stock |
This rubber sprue base features a large center for button spruing. Fill the center with wax to directly sprue one wax grouping of waxes.
Friction fit them onto the bottom of your steel casting flask.
Fits a 3-1/2" diameter casting flask.
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