Dormer A7779.0 A777 HSCo Heavy-Duty Jobber Drill 9.00mm OL:125mm WL:81mm Roofing • Concealed lightweight hood with

• Concealed lightweight hood with drawcord

tiling or decorating

for lifting

• Reinforced midsole

Dormer A7779.0 A777 HSCo Heavy-Duty Jobber Drill 9.00mm OL:125mm WL:81mm Roofing • Concealed lightweight hood withA777 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