Dormer A321 HSS Steam & Bronze Tempered Drill Bit 4.3mm Pack of 10

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Dormer A321 HSS Steam & Bronze Tempered Drill Bit 4.3mm Pack of 10

Engineered for consistent, reliable performance in medium-depth drilling, this pack of ten 4.3mm drill bits brings industrial-grade durability to your workshop. The steam and bronze tempering treatment enhances wear resistance and extends tool life, making these bits ideal for use on ferrous and non-ferrous materials. Whether you are working on general engineering tasks, maintenance repairs, or installation projects, this set delivers clean, accurate holes with reduced friction and heat build-up.

- Steam tempered finish for improved surface hardness and reduced wear

- Bronze tempered treatment for added toughness and heat dissipation

- Heavy duty HSS construction designed for medium-depth drilling applications

- Tri-flat shank ensures secure grip in three-jaw chucks, preventing slipping under load

- 4.3mm diameter, pack of 10 for multiple uses or replacement stock

- 118 degree point angle for precise starting and reduced wander

- Suitable for use on steel, cast iron, brass, bronze, and aluminium alloys

- Manufactured to Dormer A321 specifications for consistent cutting geometry

These drill bits offer a smart, cost-effective solution for tradespeople and serious DIYers who demand dependable performance from their tooling.

GTIN: 3603607072028