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General description This high-performance Dormer A777 Heavy-Duty Cobalt Jobber Drill is specifically designed for demanding drilling applications, particularly in tougher materials and the aerospace industry. It features a heavy-duty 135° split point that enhances precision and efficiency, reducing walking and ensuring accurate holes. Technical specifications Material: HSCo cobalt steel Surface treatment: Bronze Tip diameter: 3.80 mm Working length: 43 mm Overall length: 75 mm Point angles: 118° conical for sizes 0.30 mm - 0.95 mm; 135° four-facet split point for sizes 1.00 mm and above Flute geometry: Standard helix, right-hand spiral, thick web Compatibility and accessories Compatible with standard drill chucks and drill presses Suitable for drilling in tough materials such as aerospace-grade metals and high-tensile alloys Installation Insert the drill bit into a compatible drill chuck, ensuring it is securely tightened Set the drill to the appropriate speed for the material being
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