General description A100 Series HSS Straight Shank Jobber Drills (Metric) are general-purpose drills made from durable high-speed steel. They feature a black oxide steam tempered coating that enhances chip flow and heat resistance, making them suitable for various metal applications. Technical specifications Material: High Speed Steel Drill Diameter: 12.7mm Flute Length: 101mm Overall Length: 151mm Point Angle: 118° Helix Angle: Normal Number of Flutes: 2 Web Thickness: Standard Relief Angle: 10 - 20 Tolerance of Diameter: h8 Tolerance of Shank: f11 Finish/Coating: Steam Tempered Black Oxide Standards Met: DIN 338 Usage The A100 Jobber Drill is suitable for drilling into a variety of metals, including: Steel Cast steel Grey cast iron Malleable cast iron Nickel brass Aluminium alloy Graphite Other information