Dormer A777 HSCo Heavy Duty Jobber Drill 3.80mm OL75mm WL43mm DOR380COB

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

A777 Metric Cobalt Jobber Drill Bits have a heavy-duty 135° split point for use when greater heat is generated during drilling e.g on higher tensile tougher materials and in particular the Aerospace Industry. Specification Flute Geometry: Standard Helix Right hand spiral Thick WebPoint Angle: 0.30 mm - 0.95 mm 118° Conical point1.00 mm to 1.40 mm inclusive 135° 4 facet point1.50 mm and above 135° split point sizes (Split point geometry to NAS 907 Aerospace Specification type P3 Point) Surface Treatment: BronzeMaterial: HSCo Cobalt steel DIN 338 RN / BS328 / ISO 235Tip diameter: 3.80mmWorking length: 43mm.Overall length: 75mm.PTDDOR380COB