Dormer A777 HSCo Heavy Duty Jobber Drill 9.00mm OL125mm WL81mm DOR900COB

ManoMano

General description Dormer A777 Metric Cobalt Jobber Drill Bits are designed for heavy-duty applications, particularly effective when drilling tougher materials that generate greater heat, such as those found in the Aerospace Industry. The drill features a 135° split point for enhanced performance. Technical specifications Tip diameter: 9.0 mm Working length: 81 mm Overall length: 125 mm 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°), 1.50 mm and above (135° split point) Surface Treatment: Bronze Material: HSCo Cobalt steel Standards: DIN 338 RN / BS328 / ISO 235

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High Speed Cobalt (HSCo) provides superior hot hardness when drilling 135 degree split point provides self centering, low thrust and easier penetration Heavy Duty design provided increase strength for drilling difficult materials Bronze finish identifies Cobalt based substrate and reduces built-up-edge For use on machines or hand held applications