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Hygrade Casting
OTEC Präzisionsfinish
OTEC Präzisionsfinish
Alfa Mirage
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OTEC Consumables
OTEC Products
Achieve flawless, repeatable finishes with our full range of genuine OTEC process media, granulates, and polishing compounds. Specially formulated for fine jewellery, they ensure maximum finishing efficiency while minimising precious metal loss.
Red Triangles 10mm
These high-quality grinding chips offer high stock removal rates and a fine surface finish. Their soft bond prevents any hardening of pitting of the workpiece surface. Plastic bonded grinding chips with a low density and a soft substrate are mainly used for the grinding and fine grinding of precious metals.
| Type | Color | Grinding performance
low->high |
Surface
smooth->high gloss |
Cones  Size a mm |
Pyramid  Size a=b mm |
|---|---|---|---|---|---|
| M | mint green | +++ | +++++ | 6, 10, 12 | 10, 12, 15 |
| X* | white | +++ | +++++ | 10, 12 | 10, 12, 15 |
| A | red | +++ | +++ | 10, 12 | 6, 10 |
| O | blue | ++++ | +++ | 10, 12 | 10, 12 |
| T | purple | ++++++ | +++ | 10, 12 | 10, 12 |
Further sizes and qualities on request. Ordering example: Shape K, Quality X, Size 10 mm => KX10
*=suitable for grinding zirconia jewelry
Ordering Details
Hygrade Casting keeps some of these products in-stock, please contact us.
Size pack options are 5kg and 20kg, if not in stock, we can order in from Germany.
