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Dormer A777 HSS-E Cobalt Jobber Drill Bits 4.3mm Pack of 10

DORMER

Compare today's prices on the "Dormer A777 HSS-E Cobalt Jobber Drill Bits 4.3mm Pack of 10".

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Last Checked: 05/11/2026
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Product Description

Compare today's prices on the "Dormer A777 HSS-E Cobalt Jobber Drill Bits 4.3mm Pack of 10".

Dormer A777 HSS-E Cobalt Jobber Drill Bits 4.3mm Pack of 10

Designed for the toughest drilling applications, these Dormer A777 drill bits deliver exceptional durability and precision in both professional and industrial settings. Manufactured from high-speed steel with 5% cobalt content, they withstand high temperatures and wear, making them ideal for machining stainless steel, titanium, and other hard-to-cut materials without losing their edge. Whether you are fabricating components or maintaining heavy machinery, this pack of ten 4.3mm jobber bits ensures consistent, reliable performance every time you drill.

- 135° split point for self-centring and reduced walking, even on curved surfaces

- Cobalt HSS-E construction for superior heat resistance and extended tool life

- Robust cylindrical shank fits standard 4.3mm chucks with minimal run-out

- Premium Dormer A777 geometry optimised for fast chip evacuation and clean holes

- Each bit individually ground to precise tolerances for repeatable accuracy

- Suitable for use on alloy steels, superalloys, cast iron, and high-strength materials

- Pack of ten provides excellent value for repeated jobs or batch production

Trusted by engineers worldwide, these drill bits offer the confidence you need for demanding metalworking tasks.

GTIN: 7320760375136