Dormer Solid Carbide Drill Bit, 7.4mm Size, 91mm Overall Length, Titanium Aluminium Nitride Finish R4547.4

Dormer R4547.4 solid carbide drill bit, measuring 7.4mm in diameter and 91mm in overall length, features a titanium aluminium nitride (TiAlN) coating that significantly enhances tool life and machining productivity. This drill bit is designed for high-performance drilling applications in mechanical, fluid power, and industrial tooling contexts.

The drill incorporates 5 helical flutes that facilitate efficient chip removal, paired with a strong web design providing excellent cross-sectional strength. The 140° drill point angle offers precise cutting and reduces wear, enabling capability to drill up to five times the bit diameter in most materials.

The cylindrical straight shank with an 8mm diameter ensures secure mounting in compatible drilling machines. Its right-hand cutting direction optimizes cutting action and overall efficiency during operation. This drill bit meets DIN 6537 L and DIN 6535 HA standards, affirming its adherence to recognized quality and dimensional tolerances.

This product is ideally suited for applications in industrial manufacturing, metalworking, construction, HVAC maintenance, and laboratory tool setups where precision carbide drilling tools are essential.

Solid carbide construction for robust durability. TiAlN coating improves heat resistance and extends tool life. Five helical flutes enable effective chip evacuation. Strong web design enhances cross-sectional strength. Standard compliant to DIN 6537 L, DIN 6535 HA for quality assurance.

Sharp 140° drill point angle for accurate machining. 8mm cylindrical straight shank for secure tool holding. Right-hand cutting direction optimized for performance. Capable of drilling up to 5x diameter in most materials.

Choose Dormer drill bits from EnvMart for trusted industrial quality and consistent performance in demanding drilling applications.

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