Dormer A147 HSS-E Cobalt High Speed Steel Drill Bit 12mm Pack of 1

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Dormer A147 HSS-E Cobalt High Speed Steel Drill Bit 12mm Pack of 1

Engineered from premium HSS-E cobalt steel, this Dormer A147 drill bit delivers exceptional heat resistance and extended tool life when drilling tough materials. Whether you are machining stainless steel, high-tensile alloys, or hard cast irons, the 12mm bit maintains sharpness under intense friction, reducing downtime and ensuring clean, accurate holes every time. The cobalt content adds the toughness needed for professional workshops and demanding industrial applications.

- Manufactured from HSS-E cobalt (5% cobalt content) for superior red hardness and wear resistance

- 118-degree conventional point geometry enables precise start and reduces walking on curved surfaces

- Nitrided surface treatment minimises friction and improves chip flow

- Tin-oxide coated finish for extra lubricity and corrosion protection

- Fully ground flutes provide consistent cutting edge geometry for optimal swarf evacuation

- Suitable for drilling alloy steels, stainless steel, titanium, and other high-strength materials

- Meets DIN 338 standard with 31 series aircraft-length specification

- Pack of 1, 12mm diameter with standard 3-flat shank for secure chuck grip

Trust the Dormer A147 to deliver reliable, repeatable drilling performance where standard HSS bits fall short.

GTIN: 7320760691649