Dormer A777 HSCo Heavy Duty Jobber Drill 7.50mm OL109mm WL69mm DOR750COB

General description High-performance cobalt drill bits designed for demanding drilling applications, especially in tough materials like steel and superalloys. Suitable for use in aerospace and industrial settings, these drill bits feature a heavy-duty construction with a 135° split point for efficient and precise drilling without the need for centering. Technical specifications Material: HSCo cobalt steel with bronze surface treatment Tip diameter: 7.50 mm Overall length: 109 mm Working length: 69 mm Point angle: 135° split point for sizes 1.00 mm and above; 118° conical point for smaller sizes Flute geometry: standard helix, right-hand spiral, thick web Tolerance: h8 Shank type: cylindrical Number of pieces per pack: 10 Compatibility and accessories Compatible with standard drill chucks and drill presses Suitable for drilling in steel, superalloys, and aerospace-grade materials Installation Insert the drill bit into a compatible drill chuck, ensuring it is securely tightened Use