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Series 549 HSS High Helix (Parabolic Flute) Straight Shank Jobber Drills
Inch
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 flues > 2.36mm dia
Manufactured to BS 328, DIN338RN.
| Flute Construction | Ground flutes |
| Number of Flutes | 2 |
| Drill Diameter Tolerance | H8 |
| MFR Part No. | 00549 001.980 |
| Flute Type | Parabolic |
| Shank Diameter Tolerance | F11 |
| Material | HSS |
| Series | 549 |
| Cutting Direction | Right Hand |
| Drill Diameter | 03/64in |
| Web Thickness | Form A |
| Point Angle | 130\u00b0 |
| Coolant Delivery | External |
| Finish/Coating | Bright |
| Standards Met | DIN 338 | DIN 1412 |
| Helix Type | High Helix |
| Flute Length | 24mm |
| Overall Length | 49mm |
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