Dormer High Speed Cobalt Drill Bit, 4.5mm Diameter, 80mm Overall Length, Helical 6-Flute, Cylindrical Shank A9004.5

Dormer A9004.5 is a high speed cobalt (HSCo) drill bit featuring a 4.5mm diameter and an 80mm overall length designed for industrial and mechanical drilling applications requiring durability and precision.

This drill bit is constructed with high speed cobalt material offering excellent heat resistance for use in a wide range of materials including metals. The six helical flutes facilitate rapid and efficient chip evacuation, which is especially beneficial for deep hole drilling.

The bright, uncoated finish provides a clean cutting edge and smooth hole finishes. The 130° drill point angle enhances centring accuracy while minimizing thrust force, allowing for cleaner starts and reduced chatter. Its thicker web design increases the bit’s structural integrity, lowering the likelihood of breakage under demanding conditions.

Manufactured in France and conforming to DIN338 standards, this Dormer jobber length drill bit permits drilling depths of up to six times the bit diameter without the need for pecking. The parabolic flute design is optimized for deep hole machining across various materials.

High speed cobalt construction for high performance and heat resistance. Helical 6-flute geometry ensures effective chip clearance. 80mm overall length with 47mm drilling length supports deep drilling tasks. Cylindrical shank type with 4.5mm diameter for secure chuck fit.

Right-hand cutting direction compatible with standard drills. 130° drill point angle for improved centring and reduced thrust. Bright uncoated finish for optimal cutting. Complies with DIN338 standards for professional use.

This drill bit is ideal for use in machine shops, manufacturing, metalworking, and other industrial environments requiring precision hole drilling with high productivity and tool life. It suits a variety of applications ranging from sheet metal to castings and structural components.

Explore more from the Dormer high speed cobalt Drill Bit range for different diameters and lengths on EnvMart.