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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.
| Drill Diameter Tolerance | H8 |
| Material | HSS |
| Flute Construction | Ground flutes |
| Coolant Delivery | External |
| Series | 549 |
| Flute Length | 81mm |
| Finish/Coating | Bright |
| Flute Type | Parabolic |
| MFR Part No. | 00549 009.130 |
| Web Thickness | Form A |
| Overall Length | 125mm |
| Point Angle | 130\u00b0 |
| Standards Met | DIN 338 | DIN 1412 |
| Drill Diameter | 23/64in |
| Number of Flutes | 2 |
| Cutting Direction | Right Hand |
| Shank Diameter Tolerance | F11 |
| Helix Type | High Helix |
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