FANAR solid carbide drill bit 2.80 mm, 20/50 mm, 3xD, HA3 VHM Blue Cut

FANAR solid carbide drill bit with a 2.80 mm cutting diameter and an overall length of 20 mm (working length 50 mm configured as 3xD) is designed for high-precision metalworking. Made from HA3 VHM Blue Cut grade solid carbide, this drill bit is intended for producing small-diameter holes with consistent concentricity and repeatable results in both CNC and manual drilling operations. The tool geometry and material combination suit applications where dimensional accuracy and tool life are important.

Advantages

The HA3 VHM Blue Cut carbide material provides a balance of hardness and toughness for stable cutting in a range of metals. The 3xD configuration (three times the diameter) delivers predictable chip evacuation and penetration depth for typical small-hole drilling tasks. Optimized point geometry ensures improved centring and reduced walking on thin-walled or hardened surfaces, while the solid carbide construction minimises runout and vibration during rotation.

Suitable for

• Precision holemaking in steel, stainless steel, and non-ferrous metals
• CNC drilling centres and automated drilling machines
• Manual drilling operations requiring small diameter accuracy
• Prototyping and small-batch production of threaded and clearance holes

Key specifications

• Cutting diameter: 2.80 mm
• Overall/working length: 20 mm / 50 mm (3xD configuration)
• Material: solid carbide (HA3 VHM Blue Cut grade)
• Tool type: twist drill for metalworking
• Recommended use: precision drilling for small holes

How to use

Select appropriate spindle speed and feed rate according to workpiece material and machine rigidity; use coolant or cutting fluid where specified for the work material to improve tool life and chip evacuation. Secure the workpiece to avoid movement, use a properly balanced holder or collet to minimise runout, and perform a pilot or spot drill when necessary for increased centring accuracy. Inspect the drill periodically for wear and replace when edge chipping or dimensional deviation occurs.

Usage recommendations

For best results, match cutting parameters to the material being machined: lower speeds for stainless steels and harder alloys, moderate speeds for mild steels and non-ferrous metals, and ensure steady feed to prevent rubbing. Use internal or external coolant for prolonged tool life and improved surface finish when drilling through thicker sections. When drilling stacked sheets or thin-walled parts, consider backing material to reduce burr formation.