The Dormer A520 HSS TiN ADX Stub Drill Bit is a high-performance tool engineered for precision and durability. Designed with a Titanium Nitride coating, this stub drill bit offers exceptional wear resistance and heat dissipation, ensuring extended tool life and consistent cutting efficiency. Made from high-speed steel, it provides robust performance across a variety of materials, including steel, aluminium, and plastics. The A520 features a 130° split point that ensures accurate and quick starts, minimising bit walking and enhancing drilling precision. The ADX geometry optimises chip removal, reducing friction and heat build-up, making it ideal for high-speed drilling applications. Its shorter length adds rigidity, making it perfect for confined spaces and applications where accuracy is paramount. Features & Benefits • High speed steel • DIN 1897 • Quick helix, right hand spiral • 130° thinned point angle • Titanium nitride coating Specifications • Diameter: 12.1mm • Overall Length: 10