General description Series A777 HSS-Co heavy duty jobber drills are designed for applications that generate more heat, making them ideal for machining higher tensile materials. Their high-speed steel/cobalt construction ensures durability even in tough conditions. Technical specifications Drill Diameter: 10.2mm Drill Diameter Tolerance: h8 Flute Length: 87mm Overall Length: 133mm Point Angle: 135° Number of Flutes: 2 Material: Cobalt High Speed Steel Finish/Coating: Bronze Flute Construction: Ground Flute Flute Type: Spiral Helix Type: Normal Helix Coolant Delivery: External Cutting Direction: Right Hand Point Type: Split Point Series: A777 Standards Met: BS 328, DIN 338 Typical Applications Drilling alloy steel Drilling tempered steel Drilling hardened steel Drilling malleable cast iron Drilling titanium Drilling nickel alloy Aerospace applications Other information