Dormer A520 HSS TiN ADX Stub Drill Bit 5.7mm Pack of 1

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Dormer A520 HSS TiN ADX Stub Drill Bit 5.7mm Pack of 1

This premium stub drill bit delivers outstanding performance in demanding applications, combining the strength of high-speed steel with a titanium nitride coating to significantly extend tool life and improve cutting efficiency. Designed for precision drilling in both CNC and manual machines, the Dormer A520 offers exceptional wear resistance and consistent hole quality across a wide range of materials, including steel, stainless steel, and cast iron. The stub length design provides increased rigidity and reduced deflection, making it ideal for shallow hole drilling and for use in confined spaces where a longer bit would be impractical.

- Titanium Nitride (TiN) coating reduces friction and heat build-up, enabling faster cutting speeds and longer tool life

- 118-degree point angle with self-centring split point eliminates the need for a centre punch and ensures accurate start

- High-speed steel (HSS) substrate offers excellent toughness and resistance to edge chipping

- Stub length design provides maximum rigidity, reducing vibration and improving hole accuracy

- Suitable for drilling in steels, stainless steels, cast irons, non-ferrous metals, and most engineering materials

- Manufactured to Dormer's exacting tolerances for consistent performance in production environments

- Pack of 1 individual drill bit, ideal for replacing worn tools or stocking specific sizes

Whether you are a professional engineer or a serious DIY machinist, this Dormer A520 stub drill bit delivers the reliability and cutting performance you need for precise, efficient results.

GTIN: 7320760039175