Dormer A777 HSCo Heavy-Duty Jobber Drill 8.50mm OL: 117mm WL: 75mm

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: 5.80mm
Working length: 75mm.
Overall length: 117mm.

We aim to deliver all in stock orders within the displayed time frame above.

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Opening Times

Monday - Friday:  8.30am - 4pm

Saturday - 9am - 3pm

Sunday - 9am - 3pm 

25 Rothersthorpe Crescent

Rothersthorpe Avenue Industrial Estate

Northampton

NN4 8JD

Email : Sales@ukb4c.com