Dormer A777 HSCo Heavy Duty Jobber Drill 3.30mm OL65mm WL36mm DOR330COB

General description A777 Metric Cobalt Jobber Drill Bits are designed for heavy-duty applications, particularly in the Aerospace Industry. They feature a 135° split point, making them ideal for drilling tougher materials that generate greater heat during the process. Technical specifications Tip diameter: 3.30 mm Working length: 36 mm Overall length: 65 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