Solid Carbide Drill Bit FANAR WIERTLO WDG FI 6.80 mm, 8° point, TiAlN coating

FANAR WIERTLO WDG FI 6.80 mm is a solid carbide drill bit with a 6.80 mm diameter, an 8° point geometry and a TiAlN (titanium aluminum nitride) coating. Manufactured for precision drilling in metals and alloyed steels, this drill combines the rigidity of carbide with a hard, heat-resistant coating to offer consistent hole quality and prolonged service life in demanding machining conditions. The 8° point angle supports reduced thrust and improved centring for through-holes and spot drilling operations.

Advantages

The solid carbide construction delivers high stiffness and dimensional stability, which minimises runout and ensures accurate hole diameters. The TiAlN coating increases surface hardness and thermal resistance, helping to maintain cutting edge integrity at higher cutting speeds and temperatures. The 8° point geometry reduces axial force and improves centring, while the precision ground flutes provide efficient chip evacuation and consistent chip formation.

Suitable for

• Precision drilling in alloyed steels and low-to-moderately hardened metals
• CNC machining centres and automated drilling stations
• Shop-floor production runs and small-batch manufacturing
• Through-holes and spot drilling where reduced thrust and good centring are required

Key specifications

• Material: solid carbide
• Nominal diameter: 6.80 mm
• Point angle: 8°
• Coating: TiAlN (titanium aluminum nitride)
• Geometry: precision ground flutes for efficient chip evacuation
• Typical applications: metal drilling, especially alloyed steels

How to use

Mount the drill bit in a suitable collet or chuck with correct clamping length to avoid tool slippage and runout. Select cutting speeds and feed rates appropriate for carbide tools and the workpiece material; use reduced pecking cycles for deep holes to assist chip removal. Apply coolant or lubricant as recommended for the workpiece to improve heat dissipation and prolong tool life. Inspect the cutting edges regularly and replace the drill when wear affects hole quality or dimensional tolerance.

Usage recommendations

Use the FANAR WIERTLO WDG FI 6.80 mm in rigid setups with minimal spindle runout, suitable cutting parameters for carbide, and adequate coolant flow. For best results in alloyed steels, start with conservative speeds and increase as tool condition confirms stable cutting; avoid excessive dwell at the drill tip to prevent built-up edge and thermal degradation.