FANAR solid carbide drill bit 3.30 mm, 3×D, HA6 VHM Blue Cut Inox, 14/63 mm shank

FANAR solid carbide drill bit with a 3.30 mm cutting diameter and a 3×D length ratio is engineered for precision drilling in stainless steels and other demanding metallic materials. The tool uses HA6 VHM (solid carbide) grade and Blue Cut Inox geometry to improve wear resistance and chip control when machining work-hardened and corrosion-resistant alloys. The shank is specified as 14/63 mm to fit machines and toolholders that require this compatible shank form and clamping length.

Advantages

The combination of HA6 VHM carbide and Blue Cut Inox geometry provides improved tool life and consistent hole quality in stainless steels. The 3×D length offers a balance between reach and rigidity, reducing vibration and deflection during CNC and handheld operations. The precisely ground flute and point geometry ensure reliable chip evacuation and reduced tendency for workpiece material adhesion.

Suitable for

• Precision drilling of stainless steels and acid-resistant alloys
• CNC machining centers and toolroom drilling
• Production runs requiring consistent hole size and finish
• Applications where rigidity and reduced runout are important

Key specifications

• Cutting diameter: 3.30 mm
• Length ratio: 3×D (overall drill length proportional to diameter)
• Material: solid carbide (VHM), HA6 grade
• Geometry: Blue Cut Inox (optimized for stainless steels)
• Shank specification: 14/63 mm

How to use

Secure the drill in a compatible chuck or collet that accepts the 14/63 mm shank specification, ensuring concentric clamping and minimal runout. Use appropriate cutting speeds and feeds for stainless steel, typically lower cutting speeds and higher feed per revolution than for carbon steels to avoid work hardening. Apply steady pecking or through-coolant cycles if deep holes or long chips are expected, and maintain correct coolant or lubricant flow to extend tool life and optimize chip evacuation.

Usage recommendations

Use suitable coolant and moderate cutting parameters when drilling stainless steels. Monitor tool wear and replace the drill when cutting edges degrade to maintain hole accuracy and surface finish. For best results in CNC applications, verify spindle runout and use rigid fixturing to exploit the drill's high rigidity and precision.