Dormer A777 HSCo Heavy Duty Jobber Drill 4.00mm OL75mm WL43mm DOR400COB

General description High-performance cobalt jobber drill bits designed for demanding drilling applications, especially in tougher materials and high-temperature environments. Suitable for use in aerospace and industrial applications, these drill bits feature a heavy-duty construction and precise geometry for optimal performance. Technical specifications Material: HSCo Cobalt steel with bronze surface treatment Point angles: 118° conical point for sizes 0.30 mm to 0.95 mm; 135° split point for sizes 1.00 mm and above Flute geometry: Standard helix, right-hand spiral, thick web Tip diameter: 4.0 mm Working length: 43 mm Overall length: 75 mm Surface treatment: Bronze coating Standards: DIN 338, NAS 907 Aerospace Specification type P3 point Compatibility and accessories Compatible with standard drill chucks and drill presses Suitable for drilling in metals, including high-tensile and aerospace-grade materials Installation Insert the drill bit into a compatible drill chuck Ensure the