Dormer High Speed Cobalt Drill Bit 4.2mm Diameter, 119mm Overall Length, 78mm Drilling Length, Spiral Flute A9404.2

Dormer A9404.2 High Speed Cobalt Drill Bit with a 4.2mm diameter, 119mm overall length, and 78mm drilling length is a high performance jobber length drill designed for machining deep holes in most materials up to 10 times the diameter. It is constructed from high speed cobalt material known for its wear resistance and suitability for various metalworking applications.

The drill features a parabolic spiral flute design that enhances rapid chip evacuation, enabling greater drilling depths without the need for pecking. Its special 130° point geometry provides excellent centring capability and reduces thrust during operation, resulting in increased precision and reduced operator fatigue.

Its thick web design improves structural strength, significantly reducing the risk of drill breakage during demanding industrial use. The drill bit has a bright, uncoated finish and a cylindrical shank, providing compatibility with a wide range of drilling machines and holders.

Industrial applications for this drill bit include manufacturing, metalworking, mechanical engineering, and general workshop use where precision drilling of small diameter deep holes is required. The drill bit conforms to DIN340 standards, assuring consistency and quality suitable for professional industrial settings.

Made from durable high speed cobalt material suitable for various materials. Designed for deep hole drilling with a 78mm drilling length. 10 spiral flutes allow efficient chip evacuation. Bright uncoated finish and cylindrical shank provide reliable performance.

130° special drill point ensures precise centering and reduced thrust. Thicker web design increases durability and reduces breakage risk. Compliant with DIN340 manufacturing standards.

This drill bit is recommended for use in industrial, manufacturing, mechanical, and metalworking environments requiring precision and durability. For additional products, browse EnvMart’s wide selection of Drill Bits and industrial tooling.