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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.
| MFR Part No. | A7774.7 |
| Finish/Coating | Bronze |
| Drill Diameter Metric | 4.7mm |
| Point Type | Split Point |
| Cutting Direction | Right Hand |
| Material | Cobalt High Speed Steel |
| Series | A777 |
| Coolant Delivery | External |
| Standards Met | BS 328 | DIN 338 |
| Flute Type | Spiral |
| Drill Diameter | 4.7mm |
| Number of Flutes | 2 |
| Overall Length | 80mm |
| Point Angle | 135\u00b0 |
| Flute Construction | Ground flutes |
| Flute Length | 47mm |
| Drill Diameter Tolerance | H8 |
| Helix Type | Normal Helix |
Payment & Security
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