Dormer A7778.5 A777 Hsco Heavy-Duty Jobber Drill 8.50Mm Ol: 117Mm Wl: 75Mm

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Dormer A7778.5 A777 Hsco Heavy-Duty Jobber Drill 8.50mm Ol: 117mm Wl: 75mm

Built for the toughest drilling applications, the Dormer A7778.5 heavy-duty jobber drill bit delivers exceptional durability and precision in both professional workshops and industrial settings. Its 8.50mm diameter, combined with a 135-degree split point, ensures fast penetration and reduces walking on curved surfaces, while the high-speed cobalt (HSCO) construction withstands elevated temperatures and abrasive materials. Whether you are working with stainless steel, hardened alloys, or general engineering metals, this bit offers consistent, reliable performance under high-stress conditions.

- 135-degree split point for accurate starting, reduced thrust, and less wandering

- HSCO (high-speed cobalt) material for superior heat resistance and extended tool life

- Overall length 117mm with a working length of 75mm for deep-hole drilling capability

- Designed for heavy-duty intermittent use in demanding production environments

- Suitable for drilling alloy steels, stainless steels, cast iron, and non-ferrous metals

- Precision-ground flutes ensure efficient chip evacuation and smooth cutting action

- Meets Dormer’s exacting quality standards for professional and industrial reliability

For your most challenging drilling tasks, the Dormer A7778.5 is the dependable choice that keeps production moving.

GTIN: 7320760375594