Dormer A777 HSCo Heavy-Duty Jobber Drill 1.00mm OL34mm WL12mm DOR100COB
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Dormer A777 HSCo Heavy-Duty Jobber Drill 1.00mm OL34mm WL12mm DOR100COB | £8.99 |  | |||
Dormer A777 HSS-E Cobalt Jobber Drill Bits 1mm Pack of 10 A7771.0 | £46.95 |  | |||
| £46.95 |  | ||||
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 Web Point Angle 0.30 mm - 0.95 mm 118 Conical point 1.00 mm to 1.40 mm inclusive 135 4 facet point 1.50 mm and above 135 split point sizes (Split point geometry to NAS 907 Aerospace Specification type P3 Point) Surface Treatment Bronze Material HSCo Cobalt steel DIN 338 RN / BS328 / ISO 235 Tip diameter 1.0mm Working length 12mm. Overall length 34mm.
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