Dormer A777 5.50MM HSCo Heavy Duty Jobber Drill

General description This high-quality Dormer A777 Heavy-Duty Cobalt Jobber Drill is designed for heavy-duty drilling tasks, particularly in tougher materials that generate more heat, such as those found in the Aerospace Industry. It features a 135° split point for precise starting and reduced walking during drilling, making it suitable for applications requiring high accuracy. Technical specifications Tip diameter: 5.50 mm Working length: 57 mm Overall length: 93 mm Flute geometry: Standard helix, right-hand spiral, thick web Point angles: 118° conical point for sizes 0.30 mm to 0.95 mm; 135° four-facet point for sizes 1.00 mm to 1.40 mm; 135° split point for sizes 1.50 mm and above Surface treatment: Bronze Material: HSCo cobalt steel Standards: DIN 338 RN / BS 328 / ISO 235 Compatibility and accessories Compatible with standard drill chucks for sizes up to 13 mm Suitable for drilling in metals, including tougher alloys and aerospace-grade materials Installation Insert the drill bit

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: 5.50mmWorking length: 57mm.Overall length: 93mm.PTDDOR550COB