Dormer A777 HSCo Heavy-Duty Jobber Drill 3.30mm OL:65mm WL:36mmDormer
Dormer A777 Heavy-duty Cobalt jobber drill for use when greater heat is generated during drilling, e.g on higher tensile, tougher materials and in particular the Aerospace Industry.
Specifications:Flute Geometry: Standard Helix, Right hand spiral, Thick WebPoint Angle: 0.30 mm - 0.95 mm 118° Conical point1.00 mm to 1.40 mm inclusive 135° 4 facet point1.50 mm and above 135° split point sizes (Split point geometry to NAS 907 Areospace Specification type P3 Point)
Surface Treatment: BronzeMaterial: HSCo Cobalt steel
DIN 338 RN / BS328 / ISO235
Tip diameter: 3.30mmWorking length: 36mm.Overall length: 65mm.