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Dormer A520 HSS TiN ADX Stub Drill Bit 8.4mm Pack of 1 - Image 1
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Dormer A520 HSS TiN ADX Stub Drill Bit 8.4mm Pack of 1

DORMER

Compare today's prices on the "Dormer A520 HSS TiN ADX Stub Drill Bit 8.4mm Pack of 1".

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Last Checked: 05/11/2026
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Product Description

Compare today's prices on the "Dormer A520 HSS TiN ADX Stub Drill Bit 8.4mm Pack of 1".

Dormer A520 HSS TiN ADX Stub Drill Bit 8.4mm Pack of 1

Engineered for precision and extended tool life, this 8.4mm stub drill bit from the Dormer A520 series delivers reliable performance in demanding materials. Its Titanium Nitride (TiN) coating significantly reduces friction and heat buildup, allowing for faster cutting speeds and superior wear resistance compared to uncoated HSS bits. The stub-length design offers exceptional rigidity and minimises deflection, making it ideal for applications where accuracy and stability are critical, such as in CNC machining or manual drilling on steel, cast iron, and stainless steel.

- High-speed steel (HSS) construction for strength and toughness

- Titanium Nitride (TiN) coating for enhanced hardness and lubricity

- ADX geometry with split point for self-centering and reduced thrust

- 118° point angle optimised for efficient chip evacuation and clean entry

- Stub-length body provides increased rigidity and reduced vibration

- 8.4mm diameter, 1 piece per pack, suitable for professional workshop use

Whether you are drilling through hardened steel or general fabrication tasks, this bit offers consistent results and prolonged service life.

GTIN: 7320760039441