FANAR solid carbide drill bit 6.50 mm, 3xD, HA8 VHM Blue Cut, length 34/79 mm

FANAR solid carbide drill bit 6.50 mm, 3xD, HA8 VHM Blue Cut, length 34/79 mm is a solid carbide (VHM) drilling tool designed for precision holemaking in a range of engineering materials. The tool features a 6.50 mm cutting diameter, HA8 geometry for generalized drilling performance, and a Blue Cut coating that improves wear resistance and cutting stability. With a 3xD length ratio and working/overall lengths of 34 mm and 79 mm respectively, this drill bit suits both CNC and manual machining operations where consistent chip evacuation and dimensional accuracy are required.

Advantages

The combination of solid carbide construction and Blue Cut coating delivers enhanced hardness and thermal stability for longer tool life under typical metalworking conditions. HA8 geometry provides reliable centring and steady cutting performance across steels and other common engineering materials. The 3xD flute length balances reach and rigidity, reducing deflection in moderate-depth holes and supporting stable chip evacuation during continuous or interrupted cuts.

Suitable for

• Drilling through low- and medium-hardness steels
• CNC and manual machine drilling operations
• Applications requiring accurate hole diameter and straightness
• General engineering and maintenance drilling tasks

Key specifications

• Cutting diameter: 6.50 mm
• Length ratio: 3xD
• Working length: 34 mm
• Overall length: 79 mm
• Geometry: HA8
• Material: solid carbide (VHM)
• Coating: Blue Cut

How to use

Secure the drill bit in an appropriate collet or chuck designed for solid carbide tools, ensuring correct concentricity. Select cutting speeds and feed rates compatible with the workpiece material, taking into account the small 6.50 mm diameter and carbide tooling limits. Apply suitable cutting fluid or coolant when drilling metals to control temperature and improve chip evacuation. Use peck drilling cycles or periodic retracts for deeper holes to prevent chip packing and maintain hole quality.

Usage recommendations

For best results, match cutting parameters to the material being machined and the machine rigidity. Reduce feed or use shorter intervals when entering interrupted cuts or workpieces with hard spots. Store the tool in a protective holder to avoid edge damage when not in use.