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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.
| Material | HSS |
| Drill Diameter | 1/16in |
| Point Angle | 130\u00b0 |
| Flute Construction | Ground flutes |
| Cutting Direction | Right Hand |
| Flute Type | Parabolic |
| MFR Part No. | 00549 001.590 |
| Series | 549 |
| Shank Diameter Tolerance | F11 |
| Finish/Coating | Bright |
| Coolant Delivery | External |
| Drill Diameter Tolerance | H8 |
| Flute Length | 20mm |
| Overall Length | 43mm |
| Helix Type | High Helix |
| Number of Flutes | 2 |
| Web Thickness | Form A |
| Standards Met | DIN 338 | DIN 1412 |
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