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A777 Metric Cobalt Jobber Drill Bits have a heavy-duty, 135 split point for use when greater heat is generated during drilling, e.g on higher tensile tougher materials and in particular the Aerospace Industry. Specification Flute Geometry: Standard Helix, Right hand spiral, Thick WebPoint Angle: 0.30 mm - 0.95 mm 118 Conical point1.00 mm to 1.40 mm inclusive 135 4 facet point1.50 mm and above 135 split point sizes (Split point geometry to NAS 907 Aerospace Specification type P3 Point) Surface Treatment: BronzeMaterial: HSCo Cobalt steel DIN 338 RN / BS328 / ISO 235
| Working Length | 30mm |
| Overall Length | 57mm |
| MFR Part No. | DOR250COB |
| Pack Quantity | 1 |
| Tip Diameter | 2.5mm |
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