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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.
| Material | HSS |
| Standards Met | DIN 338 | DIN 1412 |
| Coolant Delivery | External |
| Product Type | Jobber Drills |
| Point Angle | 130\u00b0 |
| Drill Diameter Tolerance | H8 |
| Finish/Coating | Bright |
| Drill Diameter Metric | 6.6mm |
| Flute Length | 63mm |
| Overall Length | 101mm |
| MFR Part No. | 00549 006.630 |
| Shank Diameter Tolerance | F11 |
| Web Thickness | Form A |
| Flute Construction | Ground flutes |
| Series | 549 |
| Flute Type | Parabolic |
| Helix Type | High Helix |
| Cutting Direction | Right Hand |
| Drill Diameter | 6.63mm |
| Number of Flutes | 2 |
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