FANAR solid carbide drill bit Ø7.00 mm, 53/91 mm length, 5xD, HA8 VHM Blue Cut

FANAR solid carbide drill bit Ø7.00 mm, 53/91 mm length, 5xD, HA8 VHM Blue Cut is a precision metalworking tool designed for through and blind hole drilling. Made from high-performance solid carbide (VHM) and finished with a Blue Cut coating, the drill bit combines wear resistance and edge stability for consistent hole quality. The stepped length specification 53/91 mm provides a compact cutting length with extended overall reach for a variety of machining set-ups.

Advantages

The combination of HA8 grade solid carbide and Blue Cut coating offers enhanced wear resistance and thermal stability, extending tool life under demanding cutting conditions. The 5xD geometry supports controlled chip evacuation and dimensional accuracy when drilling to depths up to five times the diameter. The precision ground point and flute geometry contribute to improved centring and reduced runout, producing clean hole walls and reliable repeatability.

Suitable for

• Through hole drilling in steel and low-alloy materials
• Blind hole drilling where wear resistance is required
• Precision drilling operations in production and toolroom environments
• High-speed and medium-feed machining where coating performance matters

Key specifications

• Diameter: 7.00 mm
• Cutting length / overall length: stepped 53 mm / 91 mm
• Drilling depth ratio: 5×D (five times diameter)
• Material: solid carbide (VHM), HA8 grade
• Coating: Blue Cut

How to use

Clamp the drill bit securely in a suitable chuck or toolholder compatible with solid carbide tools and check runout before machining. Select appropriate spindle speed and feed based on the workpiece material and the 7.00 mm diameter, reducing speed for hard or heat-sensitive alloys. Use steady, consistent feed to maintain chip formation and avoid dwelling at the bottom of blind holes. Apply appropriate cutting fluid or coolant where recommended for the material and machining parameters to control temperature and improve surface finish.

Usage recommendations

For best results, match spindle speed and feed to the material and machine rigidity, ensure correct clamping and minimal runout, and use coolant when machining steels and alloys. Regularly inspect the cutting edges for wear and replace the tool when accuracy or surface finish degrades.