Drill bit FANAR WIERTLO Węglik Ø6.50 mm, length 53/91 mm, 5xD, HA8 VHM Blue Cut

Solid carbide (VHM) drill bit FANAR WIERTLO Węglik Ø6.50 mm, length 53/91 mm, 5xD, HA8 VHM Blue Cut is a precision metalworking tool engineered for repeatable, high-quality holemaking. With a 6.50 mm diameter, 53 mm working length and 91 mm overall length, this drill offers a 5xD length ratio suitable for standard through and blind holes. The Blue Cut cutting geometry and HA8 grade carbide provide a balance of wear resistance and cutting performance for a range of industrial machining applications, including CNC and manual drilling operations.

Advantages

The combination of VHM construction and HA8 carbide grade ensures consistent hardness and improved tool life under typical machining conditions. The Blue Cut cutting geometry promotes efficient chip evacuation and stable cutting, reducing burr formation and improving surface finish. A 5xD length ratio offers sufficient reach while maintaining rigidity for accurate hole size and positional repeatability. The drill is designed to perform reliably in various metal materials when used with appropriate speeds, feeds and coolant strategies.

Suitable for

• Precision drilling of steels and non-ferrous metals
• CNC machining centers and manual drill presses
• Through-hole and blind-hole drilling up to 5xD
• Production environments requiring repeatable hole quality

Key specifications

• Material: solid carbide (VHM)
• Cutting geometry: Blue Cut
• Carbide grade: HA8
• Diameter: 6.50 mm
• Working length: 53 mm
• Overall length: 91 mm
• Length ratio: 5×D

How to use

Mount the drill securely in a suitable chuck or collet and ensure correct runout and clamping. Select cutting speed and feed according to the workpiece material and machine rigidity; use lower speeds for harder alloys and higher speeds for softer, non-ferrous materials. Apply appropriate coolant or cutting fluid to improve tool life and chip evacuation when machining steels and other difficult-to-cut materials. For blind holes, retract periodically to clear chips and avoid chip packing; for through holes ensure continuous chip flow. Inspect hole diameter and surface finish periodically and replace the tool when wear affects dimensional accuracy or cutting performance.

Usage recommendations

For best results, pair the FANAR Blue Cut carbide drill with correct speed/feed settings and a stable clamping setup. Use internal or external coolant when machining steels and high-alloy materials. Monitor tool wear and maintain recommended machining parameters to achieve consistent hole quality and prolong tool life.