Dormer R458 HM High Performance TiAlN Coated Force X Drill Bit 7.8mm

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Dormer R458 HM High Performance TiAlN Coated Force X Drill Bit 7.8mm

This 7.8mm drill bit from Dormer’s R458 Series delivers exceptional productivity and accuracy in the most demanding applications, thanks to its advanced TiAlN coating and force-optimised geometry. Designed for high-speed machining of steel, stainless steel, and cast iron, it provides outstanding tool life and consistent hole quality, reducing downtime and increasing throughput in professional workshops and production environments.

- TiAlN (Titanium Aluminium Nitride) coating for superior heat resistance, reduced friction, and extended service life even in dry or high-temperature conditions

- Four-facet point geometry ensures precise centring, minimises walking, and produces clean, burr-free holes

- Heavy-duty HM (hard metal) carbide substrate for exceptional strength and wear resistance in challenging materials

- Force X design with reinforced core and optimised flute shape for efficient chip evacuation and vibration-free drilling

- Suitable for both through-hole and blind-hole applications in materials up to 45 HRC hardness

- Diameter: 7.8mm – ideal for M8 and other metric fasteners and general engineering tasks

- Manufactured to Dormer’s exacting quality standards for consistent performance across multiple re-sharpenings

Ideal for precision engineers and metalworkers who demand reliability and speed from every drill operation.

GTIN: 7320760626627