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Series 549 HSS High Helix (Parabolic Flute) Jobber Drills
Metric
HSS GT100 jobber drills. For drilling in difficult conditions when swarf congestion prevents an adequate flow of coolant. For use in steel and cast iron having a hardness of up to 1000N/mm2. Not recommended for nickel-chrome steels or similar material. Nitrided lands/polished > 2.36mm dia
Manufactured to BS 328, DIN338RN.
| Drill Diameter Metric | 12.3mm |
| Material | HSS |
| Finish/Coating | Bright |
| MFR Part No. | 00549 012.300 |
| Flute Construction | Ground flutes |
| Series | 549 |
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