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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 |
| Helix Type | High Helix |
| Overall Length | 38mm |
| Material | HSS |
| Finish/Coating | Bright |
| Coolant Delivery | External |
| Number of Flutes | 2 |
| Shank Diameter Tolerance | F11 |
| Drill Diameter | 03/64in |
| Web Thickness | Form A |
| Cutting Direction | Right Hand |
| MFR Part No. | 00549 001.190 |
| Point Angle | 130\u00b0 |
| Flute Construction | Ground flutes |
| Flute Type | Parabolic |
| Series | 549 |
| Flute Length | 16mm |
| Standards Met | DIN 338 | DIN 1412 |
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