Join
Proto save
£0.63
Loading...
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.
| Point Angle | 130\u00b0 |
| Flute Length | 75mm |
| Flute Construction | Ground flutes |
| Coolant Delivery | External |
| Drill Diameter Tolerance | H8 |
| Finish/Coating | Bright |
| Drill Diameter | 5/16in |
| Shank Diameter Tolerance | F11 |
| Number of Flutes | 2 |
| Cutting Direction | Right Hand |
| Material | HSS |
| Helix Type | High Helix |
| Series | 549 |
| Flute Type | Parabolic |
| Overall Length | 117mm |
| MFR Part No. | 00549 007.940 |
| Web Thickness | Form A |
| Standards Met | DIN 338 | DIN 1412 |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
