Dormer A777 Hsco Cobalt Heavy-duty Jobber Drill Bits Metric - 135° Split Point - Aerospace Specification - Steel

DORMER

Dormer A777 Metric Cobalt Jobber Drill Bits are engineered for heavy-duty performance, featuring a 135° split point ideal for drilling tougher materials and high-tensile applications, particularly in the Aerospace Industry. These bits boast a standard helix flute geometry with a right-hand spiral and a thick web. The point angle varies: 0.30 mm - 0.95 mm feature a 118° conical point, while sizes 1.00 mm to 1.40 mm have a 135° 4-facet point. Sizes 1.50 mm and above utilize a 135° split point geometry conforming to NAS 907 Aerospace Specification type P3 Point. The surface treatment is bronze, and the material is HSCo Cobalt steel, meeting DIN 338 RN / BS328 / ISO 235 standards. Suitable for adult unisex use. Product Summary: Metric Cobalt Jobber Drill Bits, Heavy-duty, 135° Split Point, Aerospace Grade, HSCo Cobalt Steel, DIN 338 RN, BS328, ISO 235.