Dormer A777 HSCo Heavy-Duty Jobber Drill 5.50mm OL:93mm WL:57mm
Product details
| Management number | 236700154 | Release Date | 2026/07/09 | List Price | US$6.00 | Model Number | 236700154 | ||
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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 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: 5.50mm
Working length: 57mm.
Overall length: 93mm.
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