General description Manufactured from high-speed steel and cobalt (HSS-Co), the Dormer A777 19/64" Heavy Duty Jobber Drill is designed for toughness and precision. It is particularly effective for drilling through higher tensile and tougher materials, featuring a 135° split point that enhances precision and finish for holes over 1.5mm. Technical specifications Drill Diameter: 19/64 in Drill Diameter Tolerance: h8 Flute Length: 75 mm Overall Length: 117 mm Point Angle: 135° Material: Cobalt High Speed Steel Number of Flutes: 2 Flute Type: Spiral Flute Construction: Ground Flute Helix Type: Normal Helix Finish/Coating: Bronze Coolant Delivery: External Cutting Direction: Right Hand Standards Met: BS 328, DIN 338 Manufacturer Part Number: A77719/64 Other information