7025：Steel turning processing. Good toughness and impact resistance, suitable for processing 45# steel, carbon steel, etc.
3115：Cast iron special material. Sharp and wear-resistant, with smooth chip breaking and a thick cutting edge. Suitable for processing cast iron, ductile iron, gray cast iron such as QT350/400/600, etc.
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7025：Steel turning processing. Good toughness and impact resistance, suitable for processing 45# steel, carbon steel, etc.
3115：Cast iron special material. Sharp and wear-resistant, with smooth chip breaking and a thick cutting edge. Suitable for processing cast iron, ductile iron, gray cast iron such as QT350/400/600, etc.
| Colour | yellow, black |
|---|---|
| Grade | 7025, 3115 |
| HRC | HRC20°~30°, HRC20°~50° |
