FANAR drill bit solid carbide Ø7.80 mm, length 53/91 mm, 5xD, HA8 VHM Blue Cut

Solid carbide FANAR drill bit with a cutting diameter of 7.80 mm and combined overall/working lengths 53/91 mm. The tool is designed for deep-hole drilling at a 5xD ratio and is manufactured from VHM (tungsten carbide) with HA8 geometry and Blue Cut coating. This combination provides high dimensional stability, consistent hole quality and reliable chip evacuation for precision metalworking and production environments.

Advantages

The FANAR drill's solid carbide construction ensures rigidity and resistance to deflection during deep drilling. HA8 geometry optimises cutting forces for stable penetration and improved surface finish. Blue Cut coating increases wear resistance and reduces built-up edge formation, while the specific fluting and coating promote controlled chip evacuation to minimise clogging in long holes.

Suitable for

• Precision holemaking in steels and common alloys
• Production drilling where repeatable accuracy is required
• Through-hole and deep-hole operations up to 5×D
• CNC machining centres and automated drilling lines

Key specifications

• Cutting diameter: 7.80 mm
• Overall/working length: 53/91 mm
• Drill length ratio: 5×D (deep-hole capability)
• Material: solid tungsten carbide (VHM)
• Geometry: HA8 for improved cutting stability
• Coating: Blue Cut for enhanced wear resistance and chip flow

How to use

Install the drill in a compatible tool holder or collet with proper concentricity. Use appropriate coolant or cutting fluid to improve tool life and chip evacuation when drilling steels and alloys. Select spindle speeds and feed rates consistent with carbide tooling and the workpiece material; reduce feed for deep-hole passes if necessary. For best results, pilot or pre-drill where alignment is critical, and withdraw periodically on long holes to clear chips if machine and process allow.

Usage recommendations

Use the FANAR VHM Blue Cut drill in stable setups with minimal runout. Match cutting data to the workpiece and machine capabilities, apply consistent coolant flow, and consider pecking cycles or chip breaks for very deep holes to avoid chip packing and heat buildup.