Dormer A7773.5 A777 Hsco Heavy-Duty Jobber Drill 3.50Mm Ol:70Mm Wl:39Mm
by DORMER
£4.75
GTIN07320760375020
EAN7320760375020
MPNDOR350COB
Prices updated 6 Jun 2026
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Product Description
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 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 Aerospace Specification type P3 Point) Surface Treatment: BronzeMaterial: HSCo Cobalt steel DIN 338 RN / BS328 / ISO 235Tip diameter: 3.50mmWorking length: 39mm.Overall length: 70mm.PTDDOR350COB
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