- KM 19 – RN – ground
- 5% cobalt alloyed twist drill with very high thermal resistance
- for drilling materials with higher alloy content and strength over 800 N/mm
- DIN: 338-RN
- Brand: maykestag
- Material: HSS-ECo
- Shaft shape: cylindrical shaft
- Tip angle: 130
- Type: 603

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