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Heavy-duty Dormer drill bit, 3.80mm diameter, silver finish, spiral flutes, 75mm overall length, 43mm working length.

Dormer A7773.8 A777 Hsco Heavy-Duty Jobber Drill 3.80Mm Ol:75Mm Wl:43Mm

Name: Dormer A7773.8 A777 Hsco Heavy-Duty Jobber Drill 3.80Mm Ol:75Mm Wl:43Mm
Brand: DORMER
SKU: 41903016110

by DORMER

£5.57from 3 retailers

GTIN07320760375051

EAN7320760375051

MPNDOR380COB

Prices updated 7 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: 3.80mmWorking length: 43mm.Overall length: 75mm.PTDDOR380COB

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