Dormer A7773.5 Jobber Drill, Pack of 10, 3.50 mm

General description This Dormer A777 Heavy-Duty Cobalt Jobber Drill is designed for precise drilling in various materials, particularly in high-tensile and tougher applications such as the Aerospace Industry. It features a 3.5mm diameter, a total length of 70mm, and a cutting length of 39mm, complying with DIN 338 standards. The drill is made from cobalt-based HSS-E with a bronze coating, ensuring durability and high performance for demanding tasks. Technical specifications Diameter: 3.5mm Total length: 70mm Cutting length: 39mm Standard: DIN 338 Tip angle: 135° Material: Cobalt-based HSS-E Coating: Bronze Depth of drilling: 4xD Nominal tolerance: h8 Compatibility and accessories Compatible with standard drill chucks Suitable for use in metal, plastic, and other materials Installation Insert the drill into a compatible drill chuck Ensure the drill is securely tightened before use Usage Use with appropriate safety equipment Apply steady pressure during drilling Use at recommended

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: 3.50mmWorking length: 39mm.Overall length: 70mm.PTDDOR350COB