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Description
At the casting bench, a rubber sprue base seats the wax tree and carries the flask through investing. These are tree-type rubber bases, made to fit standard casting flasks and offered in eight diameters from 1-3/4" up to 5".
Each base carries a center hole sized for 3/8" sprue wax, so it accepts sprue wax forms such as #121.508 and #121.524. They are a working component of an investment casting setup rather than an accessory.
Features
- Tree-type rubber sprue base construction
- Center hole sized to fit 3/8" sprue wax
- Eight flask diameter sizes, 1-3/4" – 5"
- Seats securely in standard casting flasks
Available Options
| Part # | Flask Diameter (Imperial) | Flask Diameter (Metric) |
|---|---|---|
| 121.824 | 2" | 50mm |
| 121.825 | 1-3/4" | 45mm |
| 121.826 | 2-1/2" | 65mm |
| 121.827 | 3" | 75mm |
| 121.828 | 3-1/2" | 90mm |
| 121.829 | 4" | 100mm |
| 121.830 | 5" | 128mm |
| 121.882 | 3-3/8" | 85mm |
Compatibility
- Fits standard casting flasks from 1-3/4" to 5" in diameter; match the base to your flask diameter.
- Center hole accepts 3/8" sprue wax, including sprue wax forms #121.508 and #121.524.
Specifications
- Brand
- Otto Frei
- Part #
- Varies by size
- Type
- Sprue Bases
- Country of Origin
- India
- Material
- Rubber
- Base Style
- Tree type
- Center Hole
- 3/8" (fits standard sprue wax)
- Sizes Available
- 1-3/4" – 5" flask diameter
California Prop 65 Warning:Cancer and Reproductive Harm. www.P65warnings.ca.gov.
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