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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.
| Number of Flutes | 2 |
| Drill Diameter | 3.7mm |
| Series | A777 |
| Coolant Delivery | External |
| Flute Type | Spiral |
| Drill Diameter Tolerance | H8 |
| Point Type | Split Point |
| Cutting Direction | Right Hand |
| MFR Part No. | A7773.7 |
| Material | Cobalt High Speed Steel |
| Point Angle | 135\u00b0 |
| Drill Diameter Metric | 3.7mm |
| Standards Met | BS 328 | DIN 338 |
| Overall Length | 70mm |
| Finish/Coating | Bronze |
| Flute Length | 39mm |
| Helix Type | Normal Helix |
| Flute Construction | Ground flutes |
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