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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 Tolerance | H8 |
| Material | HSS |
| Shank Diameter Tolerance | F11 |
| Flute Type | Parabolic |
| Product Type | Jobber Drills |
| Drill Diameter Metric | 2.75mm |
| MFR Part No. | 00549 002.750 |
| Cutting Direction | Right Hand |
| Overall Length | 61mm |
| Flute Length | 33mm |
| Web Thickness | Form A |
| Standards Met | DIN 338 | DIN 1412 |
| Series | 549 |
| Number of Flutes | 2 |
| Finish/Coating | Bright |
| Coolant Delivery | External |
| Flute Construction | Ground flutes |
| Helix Type | High Helix |
| Drill Diameter | 2.75mm |
| Point Angle | 130\u00b0 |
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