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Series A777 HSS-Co heavy duty jobber drills are ideal for applications where more heat is generated, such as machining higher tensile materials. Their high-speed steel/cobalt construction makes them durable even when working in tough conditions.
Features and Benefits
Excellent for drilling higher tensile, tougher materials
135 split point for improved precision and finish (over 1.5mm)
Typical Applications
Drilling
Alloy steel
Tempered steel
Hardened steel
Malleable cast iron
Titanium
Nickel alloy
Aerospace
Standards
Manufactured to BS 328, DIN 338.
| Flute Type | Spiral |
| Drill Diameter | 7.4mm |
| Point Type | Split Point |
| Overall Length | 109mm |
| Flute Length | 69mm |
| Drill Diameter Metric | 7.4mm |
| Standards Met | BS 328 | DIN 338 |
| Number of Flutes | 2 |
| Material | Cobalt High Speed Steel |
| Finish/Coating | Bronze |
| Series | A777 |
| Helix Type | Normal Helix |
| Point Angle | 135\u00b0 |
| Flute Construction | Ground flutes |
| Coolant Delivery | External |
| MFR Part No. | A7777.4 |
| Cutting Direction | Right Hand |
| Drill Diameter Tolerance | H8 |
Payment & Security
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