Precision Ring Casting Core Kit

Repeatable. Concentric. Production-Ready.

Produce clean, perfectly aligned ring blanks every time with this matched three-piece sand casting core system. Designed for jewelers and small-scale foundry work, this kit eliminates guesswork and dramatically improves mold accuracy and repeatability.

What’s Included

• Full Solid Cylinder – Forms the primary cylindrical cavity for consistent ring blank geometry.
• Half Cylinder – Assists with clean pattern release and precise mold registration.
• Rectangular Core Block with Matching Bore – Ensures concentric alignment and stable sand packing for distortion-free molds.

Each set is diameter-matched and clearly marked for quick identification and shop efficiency.

Why This Kit Matters

• True Concentricity – Maintains alignment between inner and outer diameters.
• Clean Mold Release – Reduces sand tearing and rework.
• Consistent Results – Ideal for batch production of ring blanks.
• Time Saving – Faster mold prep compared to hand shaping cavities.
• Machining-Ready Blanks – Produces uniform cylindrical castings ready for turning, profiling, or finishing.

Ideal For

• Jewelers casting silver, gold, brass, or aluminum ring stock
• Custom ring makers
• Prototype or short-run production
• Educational and studio foundries

Built for Accuracy

Smooth surfaces and matched tolerances create crisp sand impressions and predictable casting results. Whether you’re scaling production or refining your workflow, this kit brings professional repeatability to your bench.