Dormer A520 HSS TiN ADX Stub Drill Bit 5.2mm Pack of 1

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Dormer A520 HSS TiN ADX Stub Drill Bit 5.2mm Pack of 1

Precision drilling demands tools that combine speed, durability, and accuracy. The Dormer A520 HSS TiN ADX Stub Drill Bit delivers exactly that, offering exceptional performance in a compact stub-length design. Its advanced Titanium Nitride coating reduces friction and heat build-up, allowing for faster cutting speeds and extended tool life even in demanding materials. Whether you are working on hardened steels, stainless steel, or other challenging alloys, this drill bit provides clean, consistent holes with reduced wear on both the bit and your machine.

- Titanium Nitride (TiN) coating for enhanced lubricity and heat resistance, increasing tool life by up to 300%

- High-speed steel (HSS) substrate for superior hardness and edge retention

- ADX geometry optimises chip evacuation and reduces cutting forces for smoother drilling

- Stub length design improves rigidity and minimises deflection, ideal for precision work in tight spaces

- 5.2mm diameter – perfect for reaming, tapping preparation, and general engineering applications

- Self-centring 130-degree split point eliminates walking and reduces the need for centre punching

- Complies with ISO 235/1 and DIN 1897 standards for reliable, repeatable performance

Ideal for professional tradesmen, engineers, and serious DIY users who demand consistent results from a compact, high-performance drill bit.

GTIN: 7320760039120