Tip diameter: 1.0mm

Working length: 12mm.

Overall length: 34mm.

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:

0.30mm - 0.95mm 118° Conical point

1.00mm to 1.40mm inclusive 135° 4 facet point

1.50mm and above 135° split point sizes (Split point geometry to NAS 907 Areospace Specification type P3 Point)

Surface Treatment: Bronze

Material: HSCo Cobalt steel

DIN 338 RN / BS328 / ISO 235